diff --git a/cypress/e2e/pages/cytAssist.cy.ts b/cypress/e2e/pages/cytAssist.cy.ts
index 67910d1f5..d7e08fe21 100644
--- a/cypress/e2e/pages/cytAssist.cy.ts
+++ b/cypress/e2e/pages/cytAssist.cy.ts
@@ -2,14 +2,14 @@ import { selectOption, selectSGPNumber, shouldDisplaySelectedValue } from '../sh
 import {
   FindFlaggedLabwareQuery,
   FindFlaggedLabwareQueryVariables,
+  FindIfOpExistsQuery,
+  FindIfOpExistsQueryVariables,
   LabwareState,
   ReloadSlotCopyQuery,
   ReloadSlotCopyQueryVariables,
   SlideCosting,
   SlotCopyMutation,
-  SlotCopyMutationVariables,
-  FindIfOpExistsQuery,
-  FindIfOpExistsQueryVariables
+  SlotCopyMutationVariables
 } from '../../../src/types/sdk';
 import { HttpResponse } from 'msw';
 import { LabwareTypeName } from '../../../src/types/stan';
@@ -188,7 +188,9 @@ describe('CytAssist Page', () => {
       });
     });
     it('should display Invalid format error message', () => {
-      cy.findByText('Invalid format for this labware type').should('be.visible');
+      cy.contains(`Invalid format for ${LabwareTypeName.VISIUM_LP_CYTASSIST_XL}. Example: V42A20-3752023-10-20`).should(
+        'be.visible'
+      );
     });
   });
   context('When external id is entered in correct format', () => {
@@ -222,7 +224,9 @@ describe('CytAssist Page', () => {
       selectLabwareType(LabwareTypeName.VISIUM_LP_CYTASSIST_HD);
     });
     it('should validate the external barcode ', () => {
-      cy.contains('Invalid format for VISIUM LP CYTASSIST').should('be.visible');
+      cy.contains(`Invalid format for ${LabwareTypeName.VISIUM_LP_CYTASSIST_HD}. Example: H1-9D8VN2V`).should(
+        'be.visible'
+      );
     });
     it('clears out all the mapping ', () => {
       cy.findByTestId('STAN-3100').within(() => {
diff --git a/src/components/slotMapper/MultipleLabwareSlotMapper.tsx b/src/components/slotMapper/MultipleLabwareSlotMapper.tsx
index dc3dff3f4..c7db76565 100644
--- a/src/components/slotMapper/MultipleLabwareSlotMapper.tsx
+++ b/src/components/slotMapper/MultipleLabwareSlotMapper.tsx
@@ -26,7 +26,7 @@ import WhiteButton from '../buttons/WhiteButton';
 import SlotMapperTable, { SlotMapperTableProps } from './SlotMapperTable';
 import Warning from '../notifications/Warning';
 import { useFormikContext } from 'formik';
-import { CytAssistOutputLabwareForm } from '../../pages/CytAssist';
+import { CytAssistOutputLabwareForm, isVisiumLpCytAssistHdLabware } from '../../pages/CytAssist';
 import { flaggedLabwareLayout } from '../../lib/factories/labwareFactory';
 import { eventBus } from '../../eventBus';
 import { SavedDraft } from '../../lib/machines/slotCopy/slotCopyMachine';
@@ -47,17 +47,17 @@ type SelectedSlot = {
 type SlotPassFail = Map<string, Set<SlotPassFailFieldsFragment>>; // key labware barcode, failedSlots array of failed slots
 
 const validatePreBarcode = (preBarcode: string, labwareType: string) => {
-  if (labwareType === LabwareTypeName.VISIUM_LP_CYTASSIST_HD) {
+  if (isVisiumLpCytAssistHdLabware(labwareType)) {
     const isValid = /^[A-Z0-9]{2}-[A-Z0-9]{7}$/.test(preBarcode);
     return {
       valid: isValid,
-      errorMessage: isValid ? undefined : 'Invalid format for VISIUM LP CYTASSIST HD. Example: H1-9D8VN2V'
+      errorMessage: isValid ? undefined : `Invalid format for ${labwareType}. Example: H1-9D8VN2V`
     };
   }
   const isValid = /^[A-Z]\d{2}[A-Z]\d{2}-\d{7}-\d{2}-\d{2}$/.test(preBarcode);
   return {
     valid: isValid,
-    errorMessage: isValid ? undefined : 'Invalid format. Example: V42A20-3752023-10-20'
+    errorMessage: isValid ? undefined : `Invalid format for ${labwareType}. Example: V42A20-3752023-10-20`
   };
 };
 
diff --git a/src/pages/CytAssist.tsx b/src/pages/CytAssist.tsx
index a66471ec8..9daedc3f4 100644
--- a/src/pages/CytAssist.tsx
+++ b/src/pages/CytAssist.tsx
@@ -73,18 +73,30 @@ const isCytAssistThreePointLabware = (labwareType: string) => {
   );
 };
 
+export const isVisiumLpCytAssistHdLabware = (labwareType: string) => {
+  return (
+    labwareType === LabwareTypeName.VISIUM_LP_CYTASSIST_HD ||
+    labwareType === LabwareTypeName.VISIUM_LP_CYTASSIST_HD_11 ||
+    labwareType === LabwareTypeName.VISIUM_LP_CYTASSIST_HD_3_6_5 ||
+    labwareType === LabwareTypeName.VISIUM_LP_CYTASSIST_HD_3_11
+  );
+};
+
 const validationSchema = () => {
   return Yup.object().shape({
     labwareType: Yup.string().required('Required field'),
     preBarcode: Yup.string().when('labwareType', (labwareType, schema) => {
-      const val = labwareType[0] as unknown as string;
-      return val === LabwareTypeName.VISIUM_LP_CYTASSIST_HD
+      const lt = labwareType[0] as unknown as string;
+      return isVisiumLpCytAssistHdLabware(lt)
         ? Yup.string()
             .required('Required field')
-            .matches(/[A-Z0-9]{2}-[A-Z0-9]{7}/, 'Invalid format for a labware type of VISIUM_LP_CYTASSIST_HD')
+            .matches(/[A-Z0-9]{2}-[A-Z0-9]{7}/, `Invalid format for ${labwareType}. Example: H1-9D8VN2V`)
         : Yup.string()
             .required('Required field')
-            .matches(/[A-Z]\d{2}[A-Z]\d{2}-\d{7}-\d{2}-\d{2}/, 'Invalid format for this labware type');
+            .matches(
+              /[A-Z]\d{2}[A-Z]\d{2}-\d{7}-\d{2}-\d{2}/,
+              `Invalid format for ${labwareType}. Example: V42A20-3752023-10-20V42A20-3752023-10-20`
+            );
     }),
     lpNumber: Yup.string().oneOf(LP_NUMBERS).required('Required field'),
     costing: Yup.string().required('Required field'),