diff --git a/packages/twenty-server/src/modules/workflow/workflow-executor/workflow-actions/filter/utils/__tests__/evaluate-filter-conditions.util.spec.ts b/packages/twenty-server/src/modules/workflow/workflow-executor/workflow-actions/filter/utils/__tests__/evaluate-filter-conditions.util.spec.ts
index bafe9cceb2..d29fbb4d75 100644
--- a/packages/twenty-server/src/modules/workflow/workflow-executor/workflow-actions/filter/utils/__tests__/evaluate-filter-conditions.util.spec.ts
+++ b/packages/twenty-server/src/modules/workflow/workflow-executor/workflow-actions/filter/utils/__tests__/evaluate-filter-conditions.util.spec.ts
@@ -804,6 +804,100 @@ describe('evaluateFilterConditions', () => {
         expect(evaluateFilterConditions({ filters: [filter2] })).toBe(true);
         expect(evaluateFilterConditions({ filters: [filter3] })).toBe(true);
       });
+
+      it('should match legacy Is operand on text by equality', () => {
+        const matching = createFilter(
+          ViewFilterOperand.IS,
+          'World',
+          'World',
+          'TEXT',
+        );
+        const substring = createFilter(
+          ViewFilterOperand.IS,
+          'Hello World',
+          'World',
+          'TEXT',
+        );
+        const notMatching = createFilter(
+          ViewFilterOperand.IS,
+          'Hello',
+          'World',
+          'TEXT',
+        );
+
+        expect(evaluateFilterConditions({ filters: [matching] })).toBe(true);
+        expect(evaluateFilterConditions({ filters: [substring] })).toBe(false);
+        expect(evaluateFilterConditions({ filters: [notMatching] })).toBe(
+          false,
+        );
+      });
+
+      it('should match legacy IsNot operand on text by inequality', () => {
+        const matching = createFilter(
+          ViewFilterOperand.IS_NOT,
+          'Hello',
+          'World',
+          'TEXT',
+        );
+        const notMatching = createFilter(
+          ViewFilterOperand.IS_NOT,
+          'World',
+          'World',
+          'TEXT',
+        );
+
+        expect(evaluateFilterConditions({ filters: [matching] })).toBe(true);
+        expect(evaluateFilterConditions({ filters: [notMatching] })).toBe(
+          false,
+        );
+      });
+
+      it('should match legacy Is operand on arrays by equality', () => {
+        const matching = createFilter(
+          ViewFilterOperand.IS,
+          ['apple', 'banana'],
+          ['apple', 'banana'],
+          'MULTI_SELECT',
+        );
+        const subset = createFilter(
+          ViewFilterOperand.IS,
+          ['apple', 'banana'],
+          ['apple'],
+          'MULTI_SELECT',
+        );
+        const notMatching = createFilter(
+          ViewFilterOperand.IS,
+          ['apple', 'banana'],
+          ['grape'],
+          'MULTI_SELECT',
+        );
+
+        expect(evaluateFilterConditions({ filters: [matching] })).toBe(true);
+        expect(evaluateFilterConditions({ filters: [subset] })).toBe(false);
+        expect(evaluateFilterConditions({ filters: [notMatching] })).toBe(
+          false,
+        );
+      });
+
+      it('should match legacy IsNot operand on arrays by set inequality', () => {
+        const matching = createFilter(
+          ViewFilterOperand.IS_NOT,
+          ['apple', 'banana'],
+          ['grape'],
+          'MULTI_SELECT',
+        );
+        const notMatching = createFilter(
+          ViewFilterOperand.IS_NOT,
+          ['apple', 'banana'],
+          ['apple', 'banana'],
+          'MULTI_SELECT',
+        );
+
+        expect(evaluateFilterConditions({ filters: [matching] })).toBe(true);
+        expect(evaluateFilterConditions({ filters: [notMatching] })).toBe(
+          false,
+        );
+      });
     });
 
     describe('empty operands', () => {
diff --git a/packages/twenty-server/src/modules/workflow/workflow-executor/workflow-actions/filter/utils/evaluate-filter-conditions.util.ts b/packages/twenty-server/src/modules/workflow/workflow-executor/workflow-actions/filter/utils/evaluate-filter-conditions.util.ts
index b7db327389..f139bb7de2 100644
--- a/packages/twenty-server/src/modules/workflow/workflow-executor/workflow-actions/filter/utils/evaluate-filter-conditions.util.ts
+++ b/packages/twenty-server/src/modules/workflow/workflow-executor/workflow-actions/filter/utils/evaluate-filter-conditions.util.ts
@@ -4,6 +4,7 @@ import {
   isObject,
   isString,
 } from '@sniptt/guards';
+import isEqual from 'lodash.isequal';
 import { Temporal } from 'temporal-polyfill';
 import {
   type StepFilter,
@@ -186,6 +187,10 @@ function evaluateTextAndArrayFilter(
         (isDefined(nullEquivalentRightValue) &&
           isNotEmptyTextOrArray(filter.leftOperand))
       );
+    case ViewFilterOperand.IS:
+      return isEqual(filter.leftOperand, filter.rightOperand);
+    case ViewFilterOperand.IS_NOT:
+      return !isEqual(filter.leftOperand, filter.rightOperand);
     case ViewFilterOperand.IS_EMPTY:
       return !isNotEmptyTextOrArray(filter.leftOperand);