diff --git a/client/src/components/builder/errorDomain.js b/client/src/components/builder/errorDomain.js
index 8104567f..3deee765 100644
--- a/client/src/components/builder/errorDomain.js
+++ b/client/src/components/builder/errorDomain.js
@@ -39,11 +39,11 @@ export const ErrorDomain = ({onSave}) => {
   };
 
   const defaultAlgorithmicError = `{
-    "algorithmic_error": {}
+    "algorithmic_error": "null"
   }`;
 
   const defaultEmpiricalError = `{
-    "empirical_error": {}
+    "empirical_error": "null"
   }`;
 
   return (
diff --git a/client/src/components/builder/index.js b/client/src/components/builder/index.js
index c0a8c54b..f2377f60 100644
--- a/client/src/components/builder/index.js
+++ b/client/src/components/builder/index.js
@@ -133,71 +133,71 @@ export default function BuilderColorCode () {
           }
         </Card>
         <br/>
-        {
-          bcoStatus === "idle" ?(<>
-            <TabPanel  domain={domain} index={0}>
-              <ErrorBoundary>
-                <ProvenanceDomain onSave={onSave}/>
-              </ErrorBoundary>
-            </TabPanel>
-            <TabPanel domain={domain} index={1}>
-              <ErrorBoundary><UsabilityDomain onSave={onSave}/></ErrorBoundary>
-            </TabPanel>
-            <TabPanel domain={domain} index={2}>
-              <ErrorBoundary>
-                <DescriptionDomain onSave={onSave}/>
-              </ErrorBoundary>
-            </TabPanel>
-            <TabPanel domain={domain} index={3}>
-              <ErrorBoundary>
-                <ExtensionDomain onSave={onSave}/>
-              </ErrorBoundary>
-            </TabPanel>
-            <TabPanel domain={domain} index={4}>
-              <ErrorBoundary>
-                <ParametricDomain onSave={onSave}/>
-              </ErrorBoundary>
-            </TabPanel>
-            <TabPanel domain={domain} index={5}>
-              <ErrorBoundary>
-                <IODomain onSave={onSave}/>
-              </ErrorBoundary>
-            </TabPanel>
-            <TabPanel domain={domain} index={6}>
-              <ErrorBoundary>
-                <ExecutionDomain onSave={onSave}/>
-              </ErrorBoundary>
-            </TabPanel>
-            <TabPanel domain={domain} index={7}>
-              <ErrorDomain onSave={onSave}/>
-            </TabPanel>
-            <TabPanel domain={domain} index={8}>
-              <RawJson onSave={onSave}/>
-            </TabPanel>
-            <TabPanel domain={domain} index={9}>
-              <TreeView onSave={onSave}/>
-            </TabPanel></>
-          ) :( 
-            <Card>
-              {bcoStatus === "loading" ?(
-                <CardContent>
-                  <ThirdBox
-                    title="Loading"
-                    image={biocomputing}
-                    imageAlt="loading..."
-                  />
-                </CardContent>
-              ) :(
-                <CardContent>
-                  <ThirdBox
-                    title="Failed to get BCO"
-                    content={JSON.stringify(bcoError)}
-                  />
+        {(bcoStatus === "loading") ? (
+          <Card>
+            <CardContent>
+              <ThirdBox
+                title="Loading"
+                image={biocomputing}
+                imageAlt="loading..."
+              />
+            </CardContent>
+          </Card>
+        ) : ((bcoStatus === "failed") ? (
+          <Card>
+            <CardContent>
+              <ThirdBox
+                title="Failed to get BCO"
+                content={JSON.stringify(bcoError)}
+              />
                     
-                </CardContent>
-              )}
-            </Card>
-          )}
+            </CardContent>
+          </Card>
+        ) : (<>
+          <TabPanel  domain={domain} index={0}>
+            <ErrorBoundary>
+              <ProvenanceDomain onSave={onSave}/>
+            </ErrorBoundary>
+          </TabPanel>
+          <TabPanel domain={domain} index={1}>
+            <ErrorBoundary><UsabilityDomain onSave={onSave}/></ErrorBoundary>
+          </TabPanel>
+          <TabPanel domain={domain} index={2}>
+            <ErrorBoundary>
+              <DescriptionDomain onSave={onSave}/>
+            </ErrorBoundary>
+          </TabPanel>
+          <TabPanel domain={domain} index={3}>
+            <ErrorBoundary>
+              <ExtensionDomain onSave={onSave}/>
+            </ErrorBoundary>
+          </TabPanel>
+          <TabPanel domain={domain} index={4}>
+            <ErrorBoundary>
+              <ParametricDomain onSave={onSave}/>
+            </ErrorBoundary>
+          </TabPanel>
+          <TabPanel domain={domain} index={5}>
+            <ErrorBoundary>
+              <IODomain onSave={onSave}/>
+            </ErrorBoundary>
+          </TabPanel>
+          <TabPanel domain={domain} index={6}>
+            <ErrorBoundary>
+              <ExecutionDomain onSave={onSave}/>
+            </ErrorBoundary>
+          </TabPanel>
+          <TabPanel domain={domain} index={7}>
+            <ErrorDomain onSave={onSave}/>
+          </TabPanel>
+          <TabPanel domain={domain} index={8}>
+            <RawJson onSave={onSave}/>
+          </TabPanel>
+          <TabPanel domain={domain} index={9}>
+            <TreeView onSave={onSave}/>
+          </TabPanel></>
+        )
+        )}
       </Stack>
     </Grid>
   )
diff --git a/client/src/layouts/objectSideBar.js b/client/src/layouts/objectSideBar.js
index f7ab7afd..82b2e350 100644
--- a/client/src/layouts/objectSideBar.js
+++ b/client/src/layouts/objectSideBar.js
@@ -57,8 +57,8 @@ export default function ObjectSideBar ({domain, setDomain}) {
   const prefix = useSelector(state => state.bco.prefix);
   const bcoStatus = useSelector(state => state.bco.status);
   const BCODB_URL = process.env.REACT_APP_BCOAPI_URL;
+  const bcoValidation = useSelector(state => state.bco.validation);
   const allowUpdate = (bcoStatus === "writing") ? (true) : (false)
-  const allowPublish = (bcoStatus === "valid") ? (true) : (false)
 
   function a11yProps(index) {
     return {
@@ -133,7 +133,7 @@ export default function ObjectSideBar ({domain, setDomain}) {
                 variant="contained"
                 color="primary"
                 onClick={publishDraft}
-                disabled={!allowPublish}
+                disabled={bcoValidation !== "valid"}
               >Publish BCO</Button>
               
             </div>
diff --git a/client/src/slices/bcoSlice.js b/client/src/slices/bcoSlice.js
index 97bd394e..622e39bb 100644
--- a/client/src/slices/bcoSlice.js
+++ b/client/src/slices/bcoSlice.js
@@ -37,6 +37,7 @@ const bcoSlice = createSlice({
     },
     prefix: null,
     status: "idle",
+    validation: "unvalidated",
     writingStatus: "idle",
     error: null
   },
@@ -133,7 +134,6 @@ const bcoSlice = createSlice({
         state.status = "idle"
       })
       .addCase(getDraftBco.rejected, (state, action) => {
-        state.error = action.payload.data
         state.status = "failed"
         state.error = action.payload
         console.log("draft failed", action.payload)
@@ -177,17 +177,20 @@ const bcoSlice = createSlice({
         state.status = "idle"
         state.error = null
       })
+      .addCase(validateBco.pending, (state, action) => {
+        state.validation = "pending"
+      })
       .addCase(validateBco.fulfilled, (state, action) => {
         if (action.payload === 200) {
-          state.status = "valid"
+          state.validation = "valid"
           state.error = null
         } else {
-          state.status = "invalid"
+          state.validation = "invalid"
           state.error = action.payload[0].data
         }
       })
       .addCase(validateBco.rejected, (state, action) => {
-        state.status = "invalid"
+        state.validation = "invalid"
       })
       .addCase(getExtension.fulfilled, (state, action) => {
         console.log(action.payload)
@@ -197,7 +200,7 @@ const bcoSlice = createSlice({
       })
       .addCase(publishDraftBco.rejected, (state, action) => {
         state.error = action.payload[0].data
-        state.status = "failed"
+        state.status = "rejected"
       })
   }
 })
@@ -251,6 +254,8 @@ export const publishDraftBco = createAsyncThunk(
   "publishDraft",
   async ({prefix, bcoURL, bcoObject}, thunkAPI) => {
     try {
+      const updateResponse = await BcoService.updateDraftBco(bcoURL, bcoObject)
+      console.log(updateResponse)
       const response = await BcoService.publishDraftBco(prefix, bcoURL, bcoObject);
       thunkAPI.dispatch(setMessage(response.data[0].message))
       return response.data;