diff --git a/projects/igniteui-angular/src/lib/grids/grid-base.component.ts b/projects/igniteui-angular/src/lib/grids/grid-base.component.ts
index 3d3c98d7e56..50685bbda58 100644
--- a/projects/igniteui-angular/src/lib/grids/grid-base.component.ts
+++ b/projects/igniteui-angular/src/lib/grids/grid-base.component.ts
@@ -4368,9 +4368,6 @@ export abstract class IgxGridBaseComponent extends DisplayDensityBase implements
         return rowChanges ? Object.keys(rowChanges).length : 0;
     }
 
-    protected writeToData(rowIndex: number, value: any) {
-        mergeObjects(this.data[rowIndex], value);
-    }
     /**
      * TODO: Refactor
      * @hidden
diff --git a/projects/igniteui-angular/src/lib/grids/tree-grid/tree-grid.component.ts b/projects/igniteui-angular/src/lib/grids/tree-grid/tree-grid.component.ts
index f770e5c43ae..3c0dbe741e6 100644
--- a/projects/igniteui-angular/src/lib/grids/tree-grid/tree-grid.component.ts
+++ b/projects/igniteui-angular/src/lib/grids/tree-grid/tree-grid.component.ts
@@ -506,8 +506,4 @@ export class IgxTreeGridComponent extends IgxGridBaseComponent {
             templateID: 'dataRow'
         };
     }
-
-    protected writeToData(rowIndex: number, value: any) {
-        mergeObjects(this.flatData[rowIndex], value);
-    }
 }
diff --git a/projects/igniteui-angular/src/lib/services/transaction/igx-hierarchical-transaction.ts b/projects/igniteui-angular/src/lib/services/transaction/igx-hierarchical-transaction.ts
index a6f4eaeb72e..8fbf81657b1 100644
--- a/projects/igniteui-angular/src/lib/services/transaction/igx-hierarchical-transaction.ts
+++ b/projects/igniteui-angular/src/lib/services/transaction/igx-hierarchical-transaction.ts
@@ -1,4 +1,4 @@
-import { HierarchicalTransaction, HierarchicalState, TransactionType, HierarchicalTransactionNode } from './transaction';
+import { HierarchicalTransaction, HierarchicalState, TransactionType } from './transaction';
 import { Injectable } from '@angular/core';
 import { IgxTransactionService } from '..';
 
diff --git a/projects/igniteui-angular/src/lib/services/transaction/transaction.ts b/projects/igniteui-angular/src/lib/services/transaction/transaction.ts
index 22dba1606d6..09164322d56 100644
--- a/projects/igniteui-angular/src/lib/services/transaction/transaction.ts
+++ b/projects/igniteui-angular/src/lib/services/transaction/transaction.ts
@@ -28,13 +28,6 @@ export interface HierarchicalState extends State {
     parentId: any;
 }
 
-/** @experimental @hidden */
-export interface HierarchicalTransactionNode {
-    id: any;
-    parentId?: any;
-    childNodes: HierarchicalTransactionNode[];
-}
-
 export interface TransactionService<T extends Transaction, S extends State> {
     /**
      * Returns whether transaction is enabled for this service