diff --git a/src/core_plugins/kibana/public/management/sections/indices/create_index_pattern_wizard/components/step_index_pattern/step_index_pattern.js b/src/core_plugins/kibana/public/management/sections/indices/create_index_pattern_wizard/components/step_index_pattern/step_index_pattern.js
index d184c099e8fcc..60b5cb2dd8dae 100644
--- a/src/core_plugins/kibana/public/management/sections/indices/create_index_pattern_wizard/components/step_index_pattern/step_index_pattern.js
+++ b/src/core_plugins/kibana/public/management/sections/indices/create_index_pattern_wizard/components/step_index_pattern/step_index_pattern.js
@@ -219,19 +219,12 @@ export class StepIndexPatternComponent extends Component {
       <EuiCallOut
         title={<FormattedMessage
           id="kbn.management.createIndexPattern.step.warningHeader"
-          defaultMessage="Whoops!"
+          defaultMessage="There's already an index pattern called {query}"
+          values={{ query }}
         />}
         iconType="help"
         color="warning"
-      >
-        <p>
-          <FormattedMessage
-            id="kbn.management.createIndexPattern.step.warningLabel"
-            defaultMessage="There's already an index pattern called `{query}`"
-            values={{ query }}
-          />
-        </p>
-      </EuiCallOut>
+      />
     );
   }
 
diff --git a/x-pack/plugins/rollup/public/crud_app/sections/components/field_list/field_list.js b/x-pack/plugins/rollup/public/crud_app/sections/components/field_list/field_list.js
index c528d11573c34..912b945a0d7e0 100644
--- a/x-pack/plugins/rollup/public/crud_app/sections/components/field_list/field_list.js
+++ b/x-pack/plugins/rollup/public/crud_app/sections/components/field_list/field_list.js
@@ -54,6 +54,7 @@ export const FieldList = ({
     toolsRight: addButton ? addButton : undefined,
     box: {
       incremental: true,
+      placeholder: 'Search',
     },
   };
 
diff --git a/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps/components/index.js b/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps/components/index.js
index 6aa485d7bfb82..e5c8eb2e2e17f 100644
--- a/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps/components/index.js
+++ b/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps/components/index.js
@@ -6,3 +6,4 @@
 
 export { FieldChooser } from './field_chooser';
 export { CronEditor } from './cron_editor';
+export { StepError } from './step_error';
diff --git a/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps/components/step_error.js b/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps/components/step_error.js
new file mode 100644
index 0000000000000..487f2d2403898
--- /dev/null
+++ b/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps/components/step_error.js
@@ -0,0 +1,36 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License;
+ * you may not use this file except in compliance with the Elastic License.
+ */
+
+import React, { Fragment } from 'react';
+import PropTypes from 'prop-types';
+import { FormattedMessage } from '@kbn/i18n/react';
+
+import {
+  EuiCallOut,
+  EuiSpacer,
+} from '@elastic/eui';
+
+export function StepError({ title = (
+  <FormattedMessage
+    id="xpack.rollupJobs.create.stepErrorTitle"
+    defaultMessage="Fix errors before continuing."
+  />
+) }) {
+  return (
+    <Fragment>
+      <EuiSpacer size="m" />
+      <EuiCallOut
+        title={title}
+        color="danger"
+        iconType="cross"
+      />
+    </Fragment>
+  );
+}
+
+StepError.propTypes = {
+  title: PropTypes.node,
+};
diff --git a/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps/step_date_histogram.js b/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps/step_date_histogram.js
index 743b871b8f8b1..2ef947c4444ce 100644
--- a/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps/step_date_histogram.js
+++ b/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps/step_date_histogram.js
@@ -11,7 +11,6 @@ import moment from 'moment-timezone';
 
 import {
   EuiButtonEmpty,
-  EuiCallOut,
   EuiDescribedFormGroup,
   EuiFieldText,
   EuiFlexGroup,
@@ -34,6 +33,8 @@ import {
   dateHistogramAggregationUrl,
 } from '../../../services';
 
+import { StepError } from './components';
+
 const timeZoneOptions = moment.tz.names().map(name => ({
   value: name,
   text: name,
@@ -85,7 +86,7 @@ export class StepDateHistogramUi extends Component {
                 <p>
                   <FormattedMessage
                     id="xpack.rollupJobs.create.stepDateHistogram.fieldInterval.preferFixedWarningDayLabel"
-                    defaultMessage="Consider using 24h instead of 1d. This will allow for more flexible queries."
+                    defaultMessage="Consider using 24h instead of 1d. This allows for more flexible queries."
                   />
                 </p>
               </EuiTextColor>
@@ -98,7 +99,7 @@ export class StepDateHistogramUi extends Component {
                 <p>
                   <FormattedMessage
                     id="xpack.rollupJobs.create.stepDateHistogram.fieldInterval.preferFixedWarningHourLabel"
-                    defaultMessage="Consider using 60m instead of 1h. This will allow for more flexible queries."
+                    defaultMessage="Consider using 60m instead of 1h. This allows for more flexible queries."
                   />
                 </p>
               </EuiTextColor>
@@ -114,7 +115,7 @@ export class StepDateHistogramUi extends Component {
               <p>
                 <FormattedMessage
                   id="xpack.rollupJobs.create.stepDateHistogram.fieldInterval.preferFixedWarningYearLabel"
-                  defaultMessage="Consider using the d unit instead of y. This will allow for more flexible queries."
+                  defaultMessage="Consider using the d unit instead of y. This allows for more flexible queries."
                 />
               </p>
             </EuiTextColor>
@@ -127,7 +128,7 @@ export class StepDateHistogramUi extends Component {
               <p>
                 <FormattedMessage
                   id="xpack.rollupJobs.create.stepDateHistogram.fieldInterval.preferFixedWarningMonthLabel"
-                  defaultMessage="Consider using the d unit instead of M. This will allow for more flexible queries."
+                  defaultMessage="Consider using the d unit instead of M. This allows for more flexible queries."
                 />
               </p>
             </EuiTextColor>
@@ -140,7 +141,7 @@ export class StepDateHistogramUi extends Component {
               <p>
                 <FormattedMessage
                   id="xpack.rollupJobs.create.stepDateHistogram.fieldInterval.preferFixedWarningWeekLabel"
-                  defaultMessage="Consider using the d unit instead of w. This will allow for more flexible queries."
+                  defaultMessage="Consider using the d unit instead of w. This allows for more flexible queries."
                 />
               </p>
             </EuiTextColor>
@@ -158,7 +159,7 @@ export class StepDateHistogramUi extends Component {
         <p>
           <FormattedMessage
             id="xpack.rollupJobs.create.stepDateHistogram.fieldInterval.helpExampleLabel"
-            defaultMessage="Example intervals: 1000ms, 30s, 20m, 24h, 2d, 1w, 1M, 1y"
+            defaultMessage="Example sizes: 1000ms, 30s, 20m, 24h, 2d, 1w, 1M, 1y"
           />
         </p>
       </Fragment>
@@ -247,10 +248,7 @@ export class StepDateHistogramUi extends Component {
                   <FormattedMessage
                     id="xpack.rollupJobs.create.stepDateHistogram.sectionDataSourceDescription"
                     defaultMessage={`
-                      Which field contains the date histogram data and how large should its time buckets be?
-                      Note that smaller, more granular intervals take up proportionally more space.
-                      You can also customize the time zone stored with the rolled-up documents.
-                      The default time zone is UTC.
+                      Note that smaller time buckets take up proportionally more space.
                     `}
                   />
                 </p>
@@ -282,7 +280,7 @@ export class StepDateHistogramUi extends Component {
               label={(
                 <FormattedMessage
                   id="xpack.rollupJobs.create.stepDateHistogram.fieldIntervalLabel"
-                  defaultMessage="Interval"
+                  defaultMessage="Time bucket size"
                 />
               )}
               error={errorDateHistogramInterval}
@@ -331,21 +329,7 @@ export class StepDateHistogramUi extends Component {
       return null;
     }
 
-    return (
-      <Fragment>
-        <EuiSpacer size="m" />
-        <EuiCallOut
-          title={(
-            <FormattedMessage
-              id="xpack.rollupJobs.create.stepDateHistogram.stepErrorTitle"
-              defaultMessage="Fix errors before going to next step"
-            />
-          )}
-          color="danger"
-          iconType="cross"
-        />
-      </Fragment>
-    );
+    return <StepError />;
   }
 }
 
diff --git a/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps/step_histogram.js b/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps/step_histogram.js
index 2d921c7dd30da..edcd8109ec5d3 100644
--- a/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps/step_histogram.js
+++ b/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps/step_histogram.js
@@ -10,7 +10,6 @@ import { injectI18n, FormattedMessage } from '@kbn/i18n/react';
 
 import {
   EuiButtonEmpty,
-  EuiCallOut,
   EuiDescribedFormGroup,
   EuiFieldNumber,
   EuiFlexGroup,
@@ -31,6 +30,7 @@ import {
 
 import {
   FieldChooser,
+  StepError,
 } from './components';
 
 export class StepHistogramUi extends Component {
@@ -98,7 +98,7 @@ export class StepHistogramUi extends Component {
                 <FormattedMessage
                   id="xpack.rollupJobs.create.stepHistogramDescription"
                   defaultMessage={`
-                    Select the fields you want to bucket using numeric histogram intervals.
+                    Select the fields you want to bucket using numeric intervals.
                   `}
                 />
               </p>
@@ -230,21 +230,7 @@ export class StepHistogramUi extends Component {
       return null;
     }
 
-    return (
-      <Fragment>
-        <EuiSpacer size="m" />
-        <EuiCallOut
-          title={(
-            <FormattedMessage
-              id="xpack.rollupJobs.create.stepGroups.stepErrorTitle"
-              defaultMessage="Fix errors before going to next step"
-            />
-          )}
-          color="danger"
-          iconType="cross"
-        />
-      </Fragment>
-    );
+    return <StepError />;
   }
 }
 
diff --git a/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps/step_logistics.js b/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps/step_logistics.js
index bcb3222ca8617..8cc55499e0923 100644
--- a/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps/step_logistics.js
+++ b/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps/step_logistics.js
@@ -10,7 +10,6 @@ import { injectI18n, FormattedMessage } from '@kbn/i18n/react';
 
 import {
   EuiButtonEmpty,
-  EuiCallOut,
   EuiDescribedFormGroup,
   EuiFieldNumber,
   EuiFieldText,
@@ -28,7 +27,7 @@ import {
 import { INDEX_PATTERN_ILLEGAL_CHARACTERS_VISIBLE } from 'ui/index_patterns';
 import { INDEX_ILLEGAL_CHARACTERS_VISIBLE } from 'ui/indices';
 import { logisticalDetailsUrl, cronUrl } from '../../../services';
-import { CronEditor } from './components';
+import { CronEditor, StepError } from './components';
 
 const indexPatternIllegalCharacters = INDEX_PATTERN_ILLEGAL_CHARACTERS_VISIBLE.join(' ');
 const indexIllegalCharacters = INDEX_ILLEGAL_CHARACTERS_VISIBLE.join(' ');
@@ -99,7 +98,7 @@ export class StepLogisticsUi extends Component {
         <p>
           <FormattedMessage
             id="xpack.rollupJobs.create.stepLogistics.fieldIndexPattern.helpMustMatchLabel"
-            defaultMessage="Index pattern must match at least one non-rollup index."
+            defaultMessage="Index pattern must match at least one index that is not a rollup."
           />
         </p>
       );
@@ -111,14 +110,14 @@ export class StepLogisticsUi extends Component {
         <p>
           <FormattedMessage
             id="xpack.rollupJobs.create.stepLogistics.fieldIndexPattern.helpAllowLabel"
-            defaultMessage="You can use a {asterisk} as a wildcard in your index pattern."
+            defaultMessage="Use a wildcard ({asterisk}) to match multiple indices."
             values={{ asterisk: <strong>*</strong> }}
           />
         </p>
         <p>
           <FormattedMessage
             id="xpack.rollupJobs.create.stepLogistics.fieldIndexPattern.helpDisallowLabel"
-            defaultMessage="You can't use spaces or the characters {characterList}"
+            defaultMessage="Spaces and the characters {characterList} are not allowed."
             values={{ characterList: <strong>{indexPatternIllegalCharacters}</strong> }}
           />
         </p>
@@ -152,7 +151,7 @@ export class StepLogisticsUi extends Component {
             label={(
               <FormattedMessage
                 id="xpack.rollupJobs.create.stepLogistics.fieldCronLabel"
-                defaultMessage="Cron pattern"
+                defaultMessage="Cron expression"
               />
             )}
             error={errorRollupCron}
@@ -167,7 +166,7 @@ export class StepLogisticsUi extends Component {
                       <EuiLink href={cronUrl} target="_blank">
                         <FormattedMessage
                           id="xpack.rollupJobs.create.stepLogistics.fieldCron.helpReference.link"
-                          defaultMessage="Learn more about cron syntax"
+                          defaultMessage="Learn more about cron expressions"
                         />
                       </EuiLink>
                     ) }}
@@ -219,7 +218,7 @@ export class StepLogisticsUi extends Component {
           <EuiLink onClick={this.showAdvancedCron}>
             <FormattedMessage
               id="xpack.rollupJobs.create.stepLogistics.sectionSchedule.buttonAdvancedLabel"
-              defaultMessage="Create advanced cron expression"
+              defaultMessage="Create cron expression"
             />
           </EuiLink>
         </EuiText >
@@ -272,7 +271,7 @@ export class StepLogisticsUi extends Component {
               <p>
                 <FormattedMessage
                   id="xpack.rollupJobs.create.stepLogisticsDescription"
-                  defaultMessage="Define the manner in which data will be rolled up."
+                  defaultMessage="Define how to run the rollup job and when to index the documents."
                 />
               </p>
             </EuiText>
@@ -350,7 +349,7 @@ export class StepLogisticsUi extends Component {
             description={(
               <FormattedMessage
                 id="xpack.rollupJobs.create.stepLogistics.sectionDataFlowDescription"
-                defaultMessage="Which indices do you want to pull data from and which rollup index should store this data?"
+                defaultMessage="Which indices do you want to roll up and where do you want to store the data?"
               />
             )}
             fullWidth
@@ -388,7 +387,7 @@ export class StepLogisticsUi extends Component {
               helpText={(
                 <FormattedMessage
                   id="xpack.rollupJobs.create.stepLogistics.fieldRollupIndex.helpDisallowLabel"
-                  defaultMessage="You can't use spaces, commas, or the characters {characterList}"
+                  defaultMessage="Spaces, commas, and the characters {characterList} are not allowed."
                   values={{ characterList: <strong>{indexIllegalCharacters}</strong> }}
                 />
               )}
@@ -418,7 +417,7 @@ export class StepLogisticsUi extends Component {
               <FormattedMessage
                 id="xpack.rollupJobs.create.stepLogistics.sectionScheduleDescription"
                 defaultMessage={`
-                  How often should data be rolled up?
+                  How often do you want to roll up the data?
                 `}
               />
             )}
@@ -433,7 +432,7 @@ export class StepLogisticsUi extends Component {
                 <h5>
                   <FormattedMessage
                     id="xpack.rollupJobs.create.stepLogistics.sectionPageSizeTitle"
-                    defaultMessage="How many documents should be rolled up at a time?"
+                    defaultMessage="How many documents do you want to roll up at a time?"
                   />
                 </h5>
               </EuiTitle>
@@ -443,7 +442,7 @@ export class StepLogisticsUi extends Component {
                 id="xpack.rollupJobs.create.stepLogistics.sectionPageSizeDescription"
                 defaultMessage={`
                   A larger page size
-                  will roll up data more quickly, but will require more memory during processing.
+                  will roll up data quicker, but requires more memory.
                 `}
               />
             )}
@@ -485,8 +484,9 @@ export class StepLogisticsUi extends Component {
               <FormattedMessage
                 id="xpack.rollupJobs.create.stepLogistics.sectionDelayDescription"
                 defaultMessage={`
-                  Waiting will yield a higher-fidelity rollup by adjusting for variable ingest latency.
-                  By default, the rollup job attempts to roll up all data that is available.
+                  A latency buffer will delay rolling up data. This will yield a higher-fidelity
+                  rollup by allowing for variable ingest latency. By default, the rollup job
+                  attempts to roll up all data that is available.
                 `}
               />
             )}
@@ -496,7 +496,7 @@ export class StepLogisticsUi extends Component {
               label={(
                 <FormattedMessage
                   id="xpack.rollupJobs.create.stepDateHistogram.fieldDelayLabel"
-                  defaultMessage="Delay (optional)"
+                  defaultMessage="Latency buffer (optional)"
                 />
               )}
               error={errorRollupDelay}
@@ -506,7 +506,7 @@ export class StepLogisticsUi extends Component {
                   <p>
                     <FormattedMessage
                       id="xpack.rollupJobs.create.stepDateHistogram.fieldDelay.helpExampleLabel"
-                      defaultMessage="Example delay values: 30s, 20m, 24h, 2d, 1w, 1M"
+                      defaultMessage="Example values: 30s, 20m, 24h, 2d, 1w, 1M"
                     />
                   </p>
                 </Fragment>
@@ -535,21 +535,7 @@ export class StepLogisticsUi extends Component {
       return null;
     }
 
-    return (
-      <Fragment>
-        <EuiSpacer size="m" />
-        <EuiCallOut
-          title={(
-            <FormattedMessage
-              id="xpack.rollupJobs.create.stepLogistics.stepErrorTitle"
-              defaultMessage="Fix errors before going to next step"
-            />
-          )}
-          color="danger"
-          iconType="cross"
-        />
-      </Fragment>
-    );
+    return <StepError />;
   }
 }
 
diff --git a/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps/step_metrics.js b/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps/step_metrics.js
index 3a1788682101a..5dae20b2e889e 100644
--- a/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps/step_metrics.js
+++ b/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps/step_metrics.js
@@ -10,7 +10,6 @@ import { injectI18n, FormattedMessage } from '@kbn/i18n/react';
 
 import {
   EuiButtonEmpty,
-  EuiCallOut,
   EuiCheckbox,
   EuiFlexGroup,
   EuiFlexItem,
@@ -29,6 +28,7 @@ import {
 
 import {
   FieldChooser,
+  StepError,
 } from './components';
 
 export class StepMetricsUi extends Component {
@@ -190,8 +190,8 @@ export class StepMetricsUi extends Component {
                 <FormattedMessage
                   id="xpack.rollupJobs.create.stepMetricsDescription"
                   defaultMessage={`
-                    Select the metrics that should be collected while rolling up data. By default,
-                    only the doc_counts are collected for each group.
+                    Select the metrics to collect while rolling up data. By default,
+                    only doc_counts are collected for each group.
                   `}
                 />
               </p>
@@ -252,16 +252,7 @@ export class StepMetricsUi extends Component {
       return null;
     }
 
-    return (
-      <Fragment>
-        <EuiSpacer size="m" />
-        <EuiCallOut
-          title={errorMetrics}
-          color="danger"
-          iconType="cross"
-        />
-      </Fragment>
-    );
+    return <StepError title={errorMetrics} />;
   }
 }
 
diff --git a/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps/step_terms.js b/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps/step_terms.js
index 8df9da5724d37..07673aea04056 100644
--- a/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps/step_terms.js
+++ b/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps/step_terms.js
@@ -98,8 +98,8 @@ export class StepTermsUi extends Component {
                   id="xpack.rollupJobs.create.stepTermsDescription"
                   defaultMessage={`
                     Select the fields you want to bucket using terms aggregations. This can be
-                    potentially costly for high-cardinality groups such as IP addresses, especially
-                    if the time-bucket is particularly sparse.
+                    costly for high-cardinality fields such as IP addresses,
+                    if the time bucket is sparse.
                   `}
                 />
               </p>
diff --git a/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps_config/index.js b/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps_config/index.js
index 29629c1eb3507..20bdb6402d40d 100644
--- a/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps_config/index.js
+++ b/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps_config/index.js
@@ -44,7 +44,9 @@ export const stepIdToStepConfigMap = {
       // Every week on Saturday, at 00:00:00
       rollupCron: '0 0 0 ? * 7',
       simpleRollupCron: '0 0 0 ? * 7',
-      rollupPageSize: '',
+      // The best page size boils down to how much memory the user has, e.g. how many buckets should
+      // be accumulated at one time. 1000 is probably a safe size without being too small.
+      rollupPageSize: 1000,
       // Though the API doesn't require a delay, in many real-world cases, servers will go down for
       // a few hours as they're being restarted. A delay of 1d would allow them that period to reboot
       // and the "expense" is pretty negligible in most cases: 1 day of extra non-rolled-up data.
diff --git a/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps_config/validate_date_histogram_field.js b/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps_config/validate_date_histogram_field.js
index 2e1c2628f1054..16400a5dcfc3a 100644
--- a/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps_config/validate_date_histogram_field.js
+++ b/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps_config/validate_date_histogram_field.js
@@ -12,7 +12,7 @@ export function validateDateHistogramField(dateHistogramField) {
     return [(
       <FormattedMessage
         id="xpack.rollupJobs.create.errors.dateHistogramFieldMissing"
-        defaultMessage="You must select a date field"
+        defaultMessage="Date field is required."
       />
     )];
   }
diff --git a/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps_config/validate_date_histogram_interval.js b/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps_config/validate_date_histogram_interval.js
index 1fc275e4f607f..c118007817498 100644
--- a/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps_config/validate_date_histogram_interval.js
+++ b/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps_config/validate_date_histogram_interval.js
@@ -17,7 +17,7 @@ export function validateDateHistogramInterval(dateHistogramInterval) {
     return [(
       <FormattedMessage
         id="xpack.rollupJobs.create.errors.dateHistogramIntervalMissing"
-        defaultMessage="You must provide an interval"
+        defaultMessage="Interval is required."
       />
     )];
   }
@@ -29,7 +29,7 @@ export function validateDateHistogramInterval(dateHistogramInterval) {
       return [(
         <FormattedMessage
           id="xpack.rollupJobs.create.errors.dateHistogramIntervalInvalidFormat"
-          defaultMessage="Invalid interval format"
+          defaultMessage="Invalid interval format."
         />
       )];
     }
diff --git a/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps_config/validate_histogram_interval.js b/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps_config/validate_histogram_interval.js
index 57d52984ae341..468e4b067cfce 100644
--- a/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps_config/validate_histogram_interval.js
+++ b/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps_config/validate_histogram_interval.js
@@ -17,7 +17,7 @@ export function validateHistogramInterval(histogram, histogramInterval) {
     return [(
       <FormattedMessage
         id="xpack.rollupJobs.create.errors.histogramIntervalZero"
-        defaultMessage="Interval must be greater than zero"
+        defaultMessage="Interval must be greater than zero."
       />
     )];
   }
@@ -26,7 +26,7 @@ export function validateHistogramInterval(histogram, histogramInterval) {
     return [(
       <FormattedMessage
         id="xpack.rollupJobs.create.errors.histogramIntervalMissing"
-        defaultMessage="You must specify an interval to roll-up these histogram fields"
+        defaultMessage="An interval is required to roll up these histogram fields."
       />
     )];
   }
diff --git a/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps_config/validate_id.js b/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps_config/validate_id.js
index ca67ab9e22a40..9cfa1fb5eebe3 100644
--- a/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps_config/validate_id.js
+++ b/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps_config/validate_id.js
@@ -12,7 +12,7 @@ export function validateId(id) {
     return [(
       <FormattedMessage
         id="xpack.rollupJobs.create.errors.idMissing"
-        defaultMessage="You must provide an ID"
+        defaultMessage="Name is required."
       />
     )];
   }
diff --git a/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps_config/validate_index_pattern.js b/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps_config/validate_index_pattern.js
index 97a9bccc70623..fcf8ea0ad5130 100644
--- a/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps_config/validate_index_pattern.js
+++ b/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps_config/validate_index_pattern.js
@@ -14,7 +14,7 @@ export function validateIndexPattern(indexPattern, rollupIndex) {
     return [(
       <FormattedMessage
         id="xpack.rollupJobs.create.errors.indexPatternMissing"
-        defaultMessage="You must provide an index pattern"
+        defaultMessage="Index pattern is required."
       />
     )];
   }
@@ -23,7 +23,7 @@ export function validateIndexPattern(indexPattern, rollupIndex) {
     return [(
       <FormattedMessage
         id="xpack.rollupJobs.create.errors.indexPatternSameAsRollupIndex"
-        defaultMessage="Index pattern must not be the same as the rollup index"
+        defaultMessage="Index pattern cannot have the same as the rollup index."
       />
     )];
   }
@@ -40,7 +40,7 @@ export function validateIndexPattern(indexPattern, rollupIndex) {
     return [(
       <FormattedMessage
         id="xpack.rollupJobs.create.errors.indexPatternIllegalCharacters"
-        defaultMessage="You must remove these characters from your index pattern: {characterList}"
+        defaultMessage="Remove the characters {characterList} from your index pattern."
         values={{ characterList: <strong>{illegalCharacters.join(' ')}</strong> }}
       />
     )];
@@ -50,7 +50,7 @@ export function validateIndexPattern(indexPattern, rollupIndex) {
     return [(
       <FormattedMessage
         id="xpack.rollupJobs.create.errors.indexPatternSpaces"
-        defaultMessage="You must remove spaces from your index pattern"
+        defaultMessage="Remove the spaces from your index pattern."
       />
     )];
   }
diff --git a/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps_config/validate_metrics.js b/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps_config/validate_metrics.js
index 815585941c056..cf07d57dc1860 100644
--- a/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps_config/validate_metrics.js
+++ b/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps_config/validate_metrics.js
@@ -22,7 +22,8 @@ export function validateMetrics(metrics) {
     return [(
       <FormattedMessage
         id="xpack.rollupJobs.create.errors.metricsTypesMissing"
-        defaultMessage="You must select metrics types for these fields or remove them: {allMissingTypes}"
+        key="xpack.rollupJobs.create.errors.metricsTypesMissing"
+        defaultMessage="Select metrics types for these fields or remove them: {allMissingTypes}."
         values={{ allMissingTypes }}
       />
     )];
diff --git a/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps_config/validate_rollup_cron.js b/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps_config/validate_rollup_cron.js
index a508de7cda03f..4df3ab8ef774d 100644
--- a/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps_config/validate_rollup_cron.js
+++ b/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps_config/validate_rollup_cron.js
@@ -13,7 +13,7 @@ export function validateRollupCron(rollupCron) {
     return [(
       <FormattedMessage
         id="xpack.rollupJobs.create.errors.rollupCronMissing"
-        defaultMessage="You must provide an interval"
+        defaultMessage="Cron pattern or basic interval is required."
       />
     )];
   }
diff --git a/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps_config/validate_rollup_delay.js b/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps_config/validate_rollup_delay.js
index 52690f4b566aa..26f6d0bdfcfc7 100644
--- a/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps_config/validate_rollup_delay.js
+++ b/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps_config/validate_rollup_delay.js
@@ -25,7 +25,7 @@ export function validateRollupDelay(rollupDelay) {
       return [(
         <FormattedMessage
           id="xpack.rollupJobs.create.errors.rollupDelayInvalidFormat"
-          defaultMessage="Invalid delay format"
+          defaultMessage="Invalid delay format."
         />
       )];
     }
diff --git a/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps_config/validate_rollup_index.js b/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps_config/validate_rollup_index.js
index cb7d99400b3fd..a5e6271e87182 100644
--- a/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps_config/validate_rollup_index.js
+++ b/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps_config/validate_rollup_index.js
@@ -14,7 +14,7 @@ export function validateRollupIndex(rollupIndex, indexPattern) {
     return [(
       <FormattedMessage
         id="xpack.rollupJobs.create.errors.rollupIndexMissing"
-        defaultMessage="You must provide a rollup index"
+        defaultMessage="Rollup index is required."
       />
     )];
   }
@@ -23,7 +23,7 @@ export function validateRollupIndex(rollupIndex, indexPattern) {
     return [(
       <FormattedMessage
         id="xpack.rollupJobs.create.errors.rollupIndexSameAsIndexPattern"
-        defaultMessage="Rollup index must not be the same as the index pattern"
+        defaultMessage="Rollup index cannot have the same as the index pattern."
       />
     )];
   }
@@ -40,7 +40,7 @@ export function validateRollupIndex(rollupIndex, indexPattern) {
     return [(
       <FormattedMessage
         id="xpack.rollupJobs.create.errors.rollupIndexIllegalCharacters"
-        defaultMessage="You must remove these characters from your rollup index name: {characterList}"
+        defaultMessage="Remove the characters {characterList} from your rollup index name."
         values={{ characterList: <strong>{illegalCharacters.join(' ')}</strong> }}
       />
     )];
@@ -50,7 +50,7 @@ export function validateRollupIndex(rollupIndex, indexPattern) {
     return [(
       <FormattedMessage
         id="xpack.rollupJobs.create.errors.rollupIndexCommas"
-        defaultMessage="You must remove commas from your rollup index name"
+        defaultMessage="Remove the commas from your rollup index name."
       />
     )];
   }
@@ -59,7 +59,7 @@ export function validateRollupIndex(rollupIndex, indexPattern) {
     return [(
       <FormattedMessage
         id="xpack.rollupJobs.create.errors.rollupIndexSpaces"
-        defaultMessage="You must remove spaces from your rollup index name"
+        defaultMessage="Remove the spaces from your rollup index name."
       />
     )];
   }
@@ -68,7 +68,7 @@ export function validateRollupIndex(rollupIndex, indexPattern) {
     return [(
       <FormattedMessage
         id="xpack.rollupJobs.create.errors.rollupIndexSpaces"
-        defaultMessage="Index names can't begin with periods"
+        defaultMessage="Index names cannot begin with periods."
       />
     )];
   }
diff --git a/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps_config/validate_rollup_page_size.js b/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps_config/validate_rollup_page_size.js
index c371578e4e5de..8ebbdb2d3f5dc 100644
--- a/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps_config/validate_rollup_page_size.js
+++ b/x-pack/plugins/rollup/public/crud_app/sections/job_create/steps_config/validate_rollup_page_size.js
@@ -12,7 +12,7 @@ export function validateRollupPageSize(rollupPageSize) {
     return [(
       <FormattedMessage
         id="xpack.rollupJobs.create.errors.rollupPageSizeMissing"
-        defaultMessage="You must provide a page size"
+        defaultMessage="Page size is required."
       />
     )];
   }
@@ -21,7 +21,7 @@ export function validateRollupPageSize(rollupPageSize) {
     return [(
       <FormattedMessage
         id="xpack.rollupJobs.create.errors.rollupPageSizeGreaterThanZero"
-        defaultMessage="Page size must be greater than zero"
+        defaultMessage="Page size must be greater than zero."
       />
     )];
   }