diff --git a/lib/process-services-cloud/src/lib/process/process-list/datatable/process-list-datatable-adapter.spec.ts b/lib/process-services-cloud/src/lib/process/process-list/datatable/process-list-datatable-adapter.spec.ts
index 480a4d85a7..7434720f08 100644
--- a/lib/process-services-cloud/src/lib/process/process-list/datatable/process-list-datatable-adapter.spec.ts
+++ b/lib/process-services-cloud/src/lib/process/process-list/datatable/process-list-datatable-adapter.spec.ts
@@ -26,7 +26,7 @@ describe('ProcessListDatatableAdapter', () => {
         const viewModel: ProcessInstanceCloudListViewModel = {
             id: '1',
             variablesMap: {
-                columnDisplayName1: getProcessInstanceVariableMock({ type: 'number' })
+                columnId1: getProcessInstanceVariableMock({ type: 'number' })
             }
         };
 
@@ -38,7 +38,7 @@ describe('ProcessListDatatableAdapter', () => {
         };
 
         const column: DataColumn<ProcessListDataColumnCustomData> = getDataColumnMock({
-            title: 'columnDisplayName1',
+            id: 'columnId1',
             customData: {
                 assignedVariableDefinitionIds: ['1'],
                 variableDefinitionsPayload: ['processKey/variableName'],
diff --git a/lib/process-services-cloud/src/lib/process/process-list/datatable/process-list-datatable-adapter.ts b/lib/process-services-cloud/src/lib/process/process-list/datatable/process-list-datatable-adapter.ts
index cad6c4af74..054d9299ae 100644
--- a/lib/process-services-cloud/src/lib/process/process-list/datatable/process-list-datatable-adapter.ts
+++ b/lib/process-services-cloud/src/lib/process/process-list/datatable/process-list-datatable-adapter.ts
@@ -20,17 +20,13 @@ import { ProcessListDataColumnCustomData, PROCESS_LIST_CUSTOM_VARIABLE_COLUMN }
 import { ProcessInstanceCloudListViewModel } from '../models/perocess-instance-cloud-view.model';
 
 export class ProcessListDatatableAdapter extends ObjectDataTableAdapter {
-    constructor(
-        data: ProcessInstanceCloudListViewModel[],
-        schema: DataColumn<ProcessListDataColumnCustomData>[]
-    ) {
+    constructor(data: ProcessInstanceCloudListViewModel[], schema: DataColumn<ProcessListDataColumnCustomData>[]) {
         super(data, schema);
     }
 
     getColumnType(row: DataRow, col: DataColumn<ProcessListDataColumnCustomData>): string {
         if (col.customData?.columnType === PROCESS_LIST_CUSTOM_VARIABLE_COLUMN) {
-            const variableDisplayName = col.title;
-            const columnType = row.obj.variablesMap?.[variableDisplayName]?.type;
+            const columnType = row.obj.variablesMap?.[col.id]?.type;
             return columnType ?? 'text';
         }
 
diff --git a/lib/process-services-cloud/src/lib/services/variable-mapper.sevice.spec.ts b/lib/process-services-cloud/src/lib/services/variable-mapper.sevice.spec.ts
index d1887f15b3..79ebef8a7f 100644
--- a/lib/process-services-cloud/src/lib/services/variable-mapper.sevice.spec.ts
+++ b/lib/process-services-cloud/src/lib/services/variable-mapper.sevice.spec.ts
@@ -32,7 +32,7 @@ describe('VariableMapperService', () => {
 
         const viewModel = service.mapVariablesByColumnTitle([objectWithVariables], [column]);
 
-        expect(viewModel[0].variablesMap[column.title].type).toEqual(expectedColumnType);
+        expect(viewModel[0].variablesMap[column.id].type).toEqual(expectedColumnType);
     };
 
     beforeEach(() => {
@@ -58,11 +58,11 @@ describe('VariableMapperService', () => {
         };
     });
 
-    it('should map variables by column title', () => {
+    it('should map variables by column id', () => {
         const expectedObjectWithVariableMap = {
             ...objectWithVariables,
             variablesMap: {
-                [column.title]: variable
+                [column.id]: variable
             }
         };
 
diff --git a/lib/process-services-cloud/src/lib/services/variable-mapper.sevice.ts b/lib/process-services-cloud/src/lib/services/variable-mapper.sevice.ts
index 99f31bb651..5792bb1d1f 100644
--- a/lib/process-services-cloud/src/lib/services/variable-mapper.sevice.ts
+++ b/lib/process-services-cloud/src/lib/services/variable-mapper.sevice.ts
@@ -23,7 +23,7 @@ import { DataColumnType } from '@alfresco/adf-extensions';
 
 @Injectable({ providedIn: 'root' })
 export class VariableMapperService {
-    mapVariablesByColumnTitle <T extends { variables?: ProcessInstanceVariable[] }>(
+    mapVariablesByColumnTitle<T extends { variables?: ProcessInstanceVariable[] }>(
         instancesList: T[] = [],
         columnsSchema: DataColumn<ProcessListDataColumnCustomData>[] = []
     ): Array<WithVariablesMap<T>> {
@@ -34,19 +34,22 @@ export class VariableMapperService {
                 return instance;
             }
 
-            const variablesMap = (instance.variables ?? []).reduce<{[columnTitle: string]: ProcessInstanceVariable}>((variableAccumulator, variable) => {
-                const processVariableDefinitionPayload =  `${variable.processDefinitionKey}/${variable.name}`;
+            const variablesMap = (instance.variables ?? []).reduce<{ [columnTitle: string]: ProcessInstanceVariable }>(
+                (variableAccumulator, variable) => {
+                    const processVariableDefinitionPayload = `${variable.processDefinitionKey}/${variable.name}`;
 
-                const column = columnsByVariables[processVariableDefinitionPayload];
-                if (column) {
-                    variableAccumulator[column] = {
-                        ...variable,
-                        type: this.mapProcessVariableTypes(variable.type)
-                    };
-                }
+                    const column = columnsByVariables[processVariableDefinitionPayload];
+                    if (column) {
+                        variableAccumulator[column] = {
+                            ...variable,
+                            type: this.mapProcessVariableTypes(variable.type)
+                        };
+                    }
 
-                return variableAccumulator;
-            }, {});
+                    return variableAccumulator;
+                },
+                {}
+            );
 
             return {
                 ...instance,
@@ -57,20 +60,16 @@ export class VariableMapperService {
         return rowsViewModel;
     }
 
-    private mapColumnKeysByVariable(
-        columnsSchema: DataColumn<ProcessListDataColumnCustomData>[]
-    ): { [key: string]: string } {
+    private mapColumnKeysByVariable(columnsSchema: DataColumn<ProcessListDataColumnCustomData>[]): { [key: string]: string } {
         const columnsByVariables = columnsSchema
-            .filter(column => !!column.customData)
+            .filter((column) => !!column.customData)
             .reduce<{ [key: string]: string }>((columnsByVariable, column) => {
-                const columnTitle = column.title;
                 const variables = column.customData.variableDefinitionsPayload;
 
                 variables.forEach((key) => {
-                    columnsByVariable[key] = columnTitle;
+                    columnsByVariable[key] = column.id;
                 });
                 return columnsByVariable;
-
             }, {});
 
         return columnsByVariables;
diff --git a/lib/process-services-cloud/src/lib/task/task-list/datatable/task-list-datatable-adapter.spec.ts b/lib/process-services-cloud/src/lib/task/task-list/datatable/task-list-datatable-adapter.spec.ts
index d7717f4bc3..59418027cc 100644
--- a/lib/process-services-cloud/src/lib/task/task-list/datatable/task-list-datatable-adapter.spec.ts
+++ b/lib/process-services-cloud/src/lib/task/task-list/datatable/task-list-datatable-adapter.spec.ts
@@ -36,7 +36,7 @@ describe('TasksListDatatableAdapter', () => {
         const viewModel: TaskInstanceCloudListViewModel = {
             ...cloudModel,
             variablesMap: {
-                columnDisplayName1: processVariable
+                columnId1: processVariable
             }
         };
 
@@ -48,7 +48,7 @@ describe('TasksListDatatableAdapter', () => {
         };
 
         const column: DataColumn<ProcessListDataColumnCustomData> = getDataColumnMock({
-            title: 'columnDisplayName1',
+            id: 'columnId1',
             customData: {
                 assignedVariableDefinitionIds: ['variableDefinitionId'],
                 variableDefinitionsPayload: ['processKey/variableName'],
diff --git a/lib/process-services-cloud/src/lib/task/task-list/datatable/task-list-datatable-adapter.ts b/lib/process-services-cloud/src/lib/task/task-list/datatable/task-list-datatable-adapter.ts
index ad32bb15f1..9255a13df9 100644
--- a/lib/process-services-cloud/src/lib/task/task-list/datatable/task-list-datatable-adapter.ts
+++ b/lib/process-services-cloud/src/lib/task/task-list/datatable/task-list-datatable-adapter.ts
@@ -20,17 +20,13 @@ import { ProcessListDataColumnCustomData, PROCESS_LIST_CUSTOM_VARIABLE_COLUMN }
 import { TaskInstanceCloudListViewModel } from '../models/task-cloud-view.model';
 
 export class TasksListDatatableAdapter extends ObjectDataTableAdapter {
-    constructor(
-        data: TaskInstanceCloudListViewModel[],
-        schema: DataColumn<ProcessListDataColumnCustomData>[]
-    ) {
+    constructor(data: TaskInstanceCloudListViewModel[], schema: DataColumn<ProcessListDataColumnCustomData>[]) {
         super(data, schema);
     }
 
     getColumnType(row: DataRow, col: DataColumn<ProcessListDataColumnCustomData>): string {
         if (col.customData?.columnType === PROCESS_LIST_CUSTOM_VARIABLE_COLUMN) {
-            const variableDisplayName = col.title;
-            const columnType = row.obj.variablesMap?.[variableDisplayName]?.type;
+            const columnType = row.obj.variablesMap?.[col.id]?.type;
             return columnType ?? 'text';
         }