diff --git a/src/plugins/vis_types/gauge/public/convert_to_lens/configurations/goal.test.ts b/src/plugins/vis_types/gauge/public/convert_to_lens/configurations/goal.test.ts
index a8070e90449ec..6d88ae3f3b0d5 100644
--- a/src/plugins/vis_types/gauge/public/convert_to_lens/configurations/goal.test.ts
+++ b/src/plugins/vis_types/gauge/public/convert_to_lens/configurations/goal.test.ts
@@ -8,6 +8,7 @@
 
 import { ColorSchemas } from '@kbn/charts-plugin/common';
 import { CustomPaletteParams, PaletteOutput } from '@kbn/coloring';
+import { CollapseFunction } from '@kbn/visualizations-plugin/common';
 import { GaugeVisParams } from '../../types';
 import { getConfiguration } from './goal';
 
@@ -69,7 +70,10 @@ describe('getConfiguration', () => {
         buckets,
         maxAccessor,
         columnsWithoutReferenced: [],
-        bucketCollapseFn: { [collapseFn]: [breakdownByAccessor] },
+        bucketCollapseFn: { [collapseFn]: [breakdownByAccessor] } as Record<
+          CollapseFunction,
+          string[]
+        >,
       })
     ).toEqual({
       breakdownByAccessor,
diff --git a/src/plugins/vis_types/gauge/public/convert_to_lens/configurations/goal.ts b/src/plugins/vis_types/gauge/public/convert_to_lens/configurations/goal.ts
index 995dc5302288e..46e1f5f05399e 100644
--- a/src/plugins/vis_types/gauge/public/convert_to_lens/configurations/goal.ts
+++ b/src/plugins/vis_types/gauge/public/convert_to_lens/configurations/goal.ts
@@ -7,7 +7,11 @@
  */
 
 import { CustomPaletteParams, PaletteOutput } from '@kbn/coloring';
-import { Column, MetricVisConfiguration } from '@kbn/visualizations-plugin/common';
+import {
+  CollapseFunction,
+  Column,
+  MetricVisConfiguration,
+} from '@kbn/visualizations-plugin/common';
 import { GaugeVisParams } from '../../types';
 
 export const getConfiguration = (
@@ -28,15 +32,15 @@ export const getConfiguration = (
     };
     maxAccessor: string;
     columnsWithoutReferenced: Column[];
-    bucketCollapseFn?: Record<string, string[]>;
+    bucketCollapseFn?: Record<CollapseFunction, string[]>;
   }
 ): MetricVisConfiguration => {
   const [metricAccessor] = metrics;
   const [breakdownByAccessor] = buckets.all;
   const collapseFn = bucketCollapseFn
-    ? Object.keys(bucketCollapseFn).find((key) =>
-        bucketCollapseFn[key].includes(breakdownByAccessor)
-      )
+    ? (Object.keys(bucketCollapseFn).find((key) =>
+        bucketCollapseFn[key as CollapseFunction].includes(breakdownByAccessor)
+      ) as CollapseFunction)
     : undefined;
   return {
     layerId,
diff --git a/src/plugins/vis_types/metric/public/convert_to_lens/configurations/index.test.ts b/src/plugins/vis_types/metric/public/convert_to_lens/configurations/index.test.ts
index 5ccfb169c91ae..f3c80eb87d5e7 100644
--- a/src/plugins/vis_types/metric/public/convert_to_lens/configurations/index.test.ts
+++ b/src/plugins/vis_types/metric/public/convert_to_lens/configurations/index.test.ts
@@ -8,6 +8,7 @@
 
 import { ColorSchemas } from '@kbn/charts-plugin/common';
 import { CustomPaletteParams, PaletteOutput } from '@kbn/coloring';
+import { CollapseFunction } from '@kbn/visualizations-plugin/common';
 import { getConfiguration } from '.';
 import { VisParams } from '../../types';
 
@@ -50,7 +51,7 @@ describe('getConfiguration', () => {
         metrics: [metric],
         buckets: { all: [bucket], customBuckets: { metric: bucket } },
         columnsWithoutReferenced: [],
-        bucketCollapseFn: { [collapseFn]: [bucket] },
+        bucketCollapseFn: { [collapseFn]: [bucket] } as Record<CollapseFunction, string[]>,
       })
     ).toEqual({
       breakdownByAccessor: bucket,
diff --git a/src/plugins/vis_types/metric/public/convert_to_lens/configurations/index.ts b/src/plugins/vis_types/metric/public/convert_to_lens/configurations/index.ts
index 7b1b42a0211f5..04969e0c99f65 100644
--- a/src/plugins/vis_types/metric/public/convert_to_lens/configurations/index.ts
+++ b/src/plugins/vis_types/metric/public/convert_to_lens/configurations/index.ts
@@ -7,7 +7,11 @@
  */
 
 import { CustomPaletteParams, PaletteOutput } from '@kbn/coloring';
-import { Column, MetricVisConfiguration } from '@kbn/visualizations-plugin/common';
+import {
+  CollapseFunction,
+  Column,
+  MetricVisConfiguration,
+} from '@kbn/visualizations-plugin/common';
 import { VisParams } from '../../types';
 
 export const getConfiguration = (
@@ -26,15 +30,15 @@ export const getConfiguration = (
       customBuckets: Record<string, string>;
     };
     columnsWithoutReferenced: Column[];
-    bucketCollapseFn?: Record<string, string[]>;
+    bucketCollapseFn?: Record<CollapseFunction, string[]>;
   }
 ): MetricVisConfiguration => {
   const [metricAccessor] = metrics;
   const [breakdownByAccessor] = buckets.all;
   const collapseFn = bucketCollapseFn
-    ? Object.keys(bucketCollapseFn).find((key) =>
-        bucketCollapseFn[key].includes(breakdownByAccessor)
-      )
+    ? (Object.keys(bucketCollapseFn).find((key) =>
+        bucketCollapseFn[key as CollapseFunction].includes(breakdownByAccessor)
+      ) as CollapseFunction)
     : undefined;
   return {
     layerId,
diff --git a/src/plugins/vis_types/table/public/convert_to_lens/configurations/index.test.ts b/src/plugins/vis_types/table/public/convert_to_lens/configurations/index.test.ts
index d2e68436700d3..19e4a004bd6fc 100644
--- a/src/plugins/vis_types/table/public/convert_to_lens/configurations/index.test.ts
+++ b/src/plugins/vis_types/table/public/convert_to_lens/configurations/index.test.ts
@@ -8,6 +8,7 @@
 
 import { AggTypes } from '../../../common';
 import { getConfiguration } from '.';
+import { CollapseFunction } from '@kbn/visualizations-plugin/common';
 
 const params = {
   perPage: 20,
@@ -48,7 +49,7 @@ describe('getConfiguration', () => {
             },
           },
         ],
-        bucketCollapseFn: { sum: ['bucket-1'] },
+        bucketCollapseFn: { sum: ['bucket-1'] } as Record<CollapseFunction, string[]>,
       })
     ).toEqual({
       columns: [
diff --git a/src/plugins/vis_types/table/public/convert_to_lens/configurations/index.ts b/src/plugins/vis_types/table/public/convert_to_lens/configurations/index.ts
index 5079b25258a75..b532a79df7d6b 100644
--- a/src/plugins/vis_types/table/public/convert_to_lens/configurations/index.ts
+++ b/src/plugins/vis_types/table/public/convert_to_lens/configurations/index.ts
@@ -6,19 +6,26 @@
  * Side Public License, v 1.
  */
 
-import { Column, PagingState, TableVisConfiguration } from '@kbn/visualizations-plugin/common';
+import {
+  CollapseFunction,
+  Column,
+  PagingState,
+  TableVisConfiguration,
+} from '@kbn/visualizations-plugin/common';
 import { TableVisParams } from '../../../common';
 
 const getColumns = (
   params: TableVisParams,
   metrics: string[],
   columns: Column[],
-  bucketCollapseFn?: Record<string, string[]>
+  bucketCollapseFn?: Record<CollapseFunction, string[]>
 ) => {
   const { showTotal, totalFunc } = params;
   return columns.map(({ columnId }) => {
     const collapseFn = bucketCollapseFn
-      ? Object.keys(bucketCollapseFn).find((key) => bucketCollapseFn[key].includes(columnId))
+      ? (Object.keys(bucketCollapseFn).find((key) =>
+          bucketCollapseFn[key as CollapseFunction].includes(columnId)
+        ) as CollapseFunction)
       : undefined;
     return {
       columnId,
@@ -61,7 +68,7 @@ export const getConfiguration = (
       customBuckets: Record<string, string>;
     };
     columnsWithoutReferenced: Column[];
-    bucketCollapseFn?: Record<string, string[]>;
+    bucketCollapseFn?: Record<CollapseFunction, string[]>;
   }
 ): TableVisConfiguration => {
   return {
diff --git a/src/plugins/vis_types/timeseries/public/convert_to_lens/lib/series/series_agg.ts b/src/plugins/vis_types/timeseries/public/convert_to_lens/lib/series/series_agg.ts
index 030bcd887f9cb..92ad627c55970 100644
--- a/src/plugins/vis_types/timeseries/public/convert_to_lens/lib/series/series_agg.ts
+++ b/src/plugins/vis_types/timeseries/public/convert_to_lens/lib/series/series_agg.ts
@@ -5,9 +5,10 @@
  * in compliance with, at your election, the Elastic License 2.0 or the Server
  * Side Public License, v 1.
  */
+import { CollapseFunction } from '@kbn/visualizations-plugin/common';
 import type { Metric } from '../../../../common/types';
 
-const functionMap: Partial<Record<string, string>> = {
+const functionMap: Partial<Record<string, CollapseFunction>> = {
   mean: 'avg',
   min: 'min',
   max: 'max',
diff --git a/src/plugins/vis_types/xy/public/convert_to_lens/index.ts b/src/plugins/vis_types/xy/public/convert_to_lens/index.ts
index 3b4339828c6d5..88965cc77f118 100644
--- a/src/plugins/vis_types/xy/public/convert_to_lens/index.ts
+++ b/src/plugins/vis_types/xy/public/convert_to_lens/index.ts
@@ -7,7 +7,7 @@
  */
 
 import { METRIC_TYPES } from '@kbn/data-plugin/public';
-import { Column, ColumnWithMeta } from '@kbn/visualizations-plugin/common';
+import { CollapseFunction, Column, ColumnWithMeta } from '@kbn/visualizations-plugin/common';
 import {
   convertToLensModule,
   getVisSchemas,
@@ -25,7 +25,7 @@ export interface Layer {
   columnOrder: never[];
   seriesIdsMap: Record<string, string>;
   isReferenceLineLayer: boolean;
-  collapseFn?: string;
+  collapseFn?: CollapseFunction;
 }
 
 const SIBBLING_PIPELINE_AGGS: string[] = [
@@ -175,9 +175,11 @@ export const convertToLens: ConvertXYToLensVisualization = async (vis, timefilte
       }
     });
     const collapseFn = l.bucketCollapseFn
-      ? Object.keys(l.bucketCollapseFn).find((key) =>
-          l.bucketCollapseFn[key].includes(l.buckets.customBuckets[l.metrics[0]])
-        )
+      ? (Object.keys(l.bucketCollapseFn).find((key) =>
+          l.bucketCollapseFn[key as CollapseFunction].includes(
+            l.buckets.customBuckets[l.metrics[0]]
+          )
+        ) as CollapseFunction)
       : undefined;
     return {
       indexPatternId,
diff --git a/src/plugins/visualizations/common/convert_to_lens/constants.ts b/src/plugins/visualizations/common/convert_to_lens/constants.ts
index b3af9b9394d67..00890884fd722 100644
--- a/src/plugins/visualizations/common/convert_to_lens/constants.ts
+++ b/src/plugins/visualizations/common/convert_to_lens/constants.ts
@@ -134,3 +134,5 @@ export const GaugeColorModes = {
   PALETTE: 'palette',
   NONE: 'none',
 } as const;
+
+export const CollapseFunctions = ['sum', 'avg', 'min', 'max'] as const;
diff --git a/src/plugins/visualizations/common/convert_to_lens/types/configurations.ts b/src/plugins/visualizations/common/convert_to_lens/types/configurations.ts
index 60f97a588c2a9..4f7a5ad715215 100644
--- a/src/plugins/visualizations/common/convert_to_lens/types/configurations.ts
+++ b/src/plugins/visualizations/common/convert_to_lens/types/configurations.ts
@@ -26,8 +26,11 @@ import {
   GaugeLabelMajorModes,
   GaugeColorModes,
   GaugeCentralMajorModes,
+  CollapseFunctions,
 } from '../constants';
 
+export type CollapseFunction = typeof CollapseFunctions[number];
+
 export type FillType = $Values<typeof FillTypes>;
 export type SeriesType = $Values<typeof SeriesTypes>;
 export type YAxisMode = $Values<typeof YAxisModes>;
@@ -43,8 +46,6 @@ export type GaugeLabelMajorMode = $Values<typeof GaugeLabelMajorModes>;
 export type GaugeCentralMajorMode = $Values<typeof GaugeCentralMajorModes>;
 export type GaugeTicksPosition = $Values<typeof GaugeTicksPositions>;
 
-type CollapseFunction = 'sum' | 'avg' | 'min' | 'max';
-
 export interface AxisExtentConfig {
   mode: 'full' | 'custom' | 'dataBounds';
   lowerBound?: number;
diff --git a/src/plugins/visualizations/common/convert_to_lens/utils.ts b/src/plugins/visualizations/common/convert_to_lens/utils.ts
index 51c7e8239a439..6a875bf63bea4 100644
--- a/src/plugins/visualizations/common/convert_to_lens/utils.ts
+++ b/src/plugins/visualizations/common/convert_to_lens/utils.ts
@@ -7,8 +7,9 @@
  */
 
 import type { DataViewField } from '@kbn/data-views-plugin/common';
+import { CollapseFunctions } from './constants';
 import type { SupportedMetric } from './lib/convert/supported_metrics';
-import type { Layer, XYAnnotationsLayerConfig, XYLayerConfig } from './types';
+import type { CollapseFunction, Layer, XYAnnotationsLayerConfig, XYLayerConfig } from './types';
 
 export const isAnnotationsLayer = (
   layer: Pick<XYLayerConfig, 'layerType'>
@@ -31,3 +32,6 @@ export const isFieldValid = (
 
   return true;
 };
+
+export const isCollapseFunction = (candidate: string | undefined): candidate is CollapseFunction =>
+  Boolean(candidate && CollapseFunctions.includes(candidate as CollapseFunction));
diff --git a/src/plugins/visualizations/public/convert_to_lens/utils.ts b/src/plugins/visualizations/public/convert_to_lens/utils.ts
index 0cab4f698fb2f..ba05d29cdeea9 100644
--- a/src/plugins/visualizations/public/convert_to_lens/utils.ts
+++ b/src/plugins/visualizations/public/convert_to_lens/utils.ts
@@ -8,7 +8,13 @@
 
 import type { DataView } from '@kbn/data-views-plugin/common';
 import { IAggConfig, METRIC_TYPES } from '@kbn/data-plugin/public';
-import { AggBasedColumn, SchemaConfig, SupportedAggregation } from '../../common';
+import {
+  AggBasedColumn,
+  CollapseFunction,
+  isCollapseFunction,
+  SchemaConfig,
+  SupportedAggregation,
+} from '../../common';
 import { convertBucketToColumns } from '../../common/convert_to_lens/lib/buckets';
 import { isSiblingPipeline } from '../../common/convert_to_lens/lib/utils';
 import { BucketColumn } from '../../common/convert_to_lens/lib';
@@ -30,7 +36,7 @@ export const getBucketCollapseFn = (
   customBucketsMap: Record<string, string>,
   metricColumns: AggBasedColumn[]
 ) => {
-  const collapseFnMap: Record<string, string[]> = {
+  const collapseFnMap: Record<CollapseFunction, string[]> = {
     min: [],
     max: [],
     sum: [],
@@ -45,8 +51,11 @@ export const getBucketCollapseFn = (
       const collapseFn = metrics
         .find((m) => m.aggId === metricColumn.meta.aggId)
         ?.aggType.split('_')[0];
-      if (collapseFn) {
-        collapseFnMap[collapseFn].push(bucket.columnId);
+
+      if (isCollapseFunction(collapseFn)) {
+        if (collapseFn) {
+          collapseFnMap[collapseFn].push(bucket.columnId);
+        }
       }
     });
   });