diff --git a/src/services/api/purchase.ts b/src/services/api/purchase.ts
index b44f3ece..91bad395 100644
--- a/src/services/api/purchase.ts
+++ b/src/services/api/purchase.ts
@@ -2,8 +2,11 @@ import {
   CreatePurchaseRequisitionsPayload,
   Purchase,
   UpdatePurchaseRequisitionsPayload,
+  CreateStaffApprovalRequisitionsPayload,
+  CreateAcceptApprovalRequisitionsPayload,
 } from '@/types/api/purchase/purchase';
 import { BaseApiService } from '@/services/api/base';
+import { BaseApiResponse } from '@/types/api/api-general';
 
 export const PurchaseRequisitionsApi = new BaseApiService<
   Purchase,
@@ -11,6 +14,72 @@ export const PurchaseRequisitionsApi = new BaseApiService<
   UpdatePurchaseRequisitionsPayload
 >('/purchases/requisitions');
 
-export const PurchaseOrderApi = new BaseApiService<Purchase, unknown, unknown>(
-  '/purchases/orders'
+export class StaffApprovalService extends BaseApiService<
+  Purchase,
+  CreateStaffApprovalRequisitionsPayload,
+  CreateAcceptApprovalRequisitionsPayload
+> {
+  constructor(basePath: string = '') {
+    super(basePath);
+  }
+
+  async approve(
+    idOrIds: number | number[],
+    notes?: string
+  ): Promise<BaseApiResponse<Purchase[]> | undefined> {
+    const approvable_ids = Array.isArray(idOrIds) ? idOrIds : [idOrIds];
+    return await this.customRequest<BaseApiResponse<Purchase[]>>('approvals', {
+      method: 'POST',
+      payload: {
+        action: 'APPROVED',
+        approvable_ids,
+        notes,
+      },
+    });
+  }
+
+  async reject(
+    idOrIds: number | number[],
+    notes: string = 'Rejected via Form'
+  ): Promise<BaseApiResponse<Purchase[]> | undefined> {
+    const approvable_ids = Array.isArray(idOrIds) ? idOrIds : [idOrIds];
+    return await this.customRequest<BaseApiResponse<Purchase[]>>('approvals', {
+      method: 'POST',
+      payload: {
+        action: 'REJECTED',
+        approvable_ids,
+        notes,
+      },
+    });
+  }
+
+  async createStaffApproval(
+    purchaseRequisitionId: number,
+    payload: CreateStaffApprovalRequisitionsPayload
+  ): Promise<BaseApiResponse<{ message: string }> | undefined> {
+    return await this.customRequest<BaseApiResponse<{ message: string }>>(
+      `${purchaseRequisitionId}/approvals/staff`,
+      {
+        method: 'POST',
+        payload,
+      }
+    );
+  }
+
+  async acceptApproval(
+    purchaseRequisitionId: number,
+    payload: CreateAcceptApprovalRequisitionsPayload
+  ): Promise<BaseApiResponse<{ message: string }> | undefined> {
+    return await this.customRequest<BaseApiResponse<{ message: string }>>(
+      `${purchaseRequisitionId}/approvals/accept`,
+      {
+        method: 'POST',
+        payload,
+      }
+    );
+  }
+}
+
+export const StaffApprovalApi = new StaffApprovalService(
+  '/purchases/requisitions'
 );
diff --git a/src/types/api/purchase/purchase.d.ts b/src/types/api/purchase/purchase.d.ts
index 72041cc5..25eae363 100644
--- a/src/types/api/purchase/purchase.d.ts
+++ b/src/types/api/purchase/purchase.d.ts
@@ -47,5 +47,30 @@ export type CreatePurchaseRequisitionsPayload = {
   }[];
 };
 
+export type CreateStaffApprovalRequisitionsPayload = {
+  notes: string;
+  items: {
+    purchase_item_id: number;
+    price: number;
+    total_price: number;
+  }[];
+};
+
+export type CreateAcceptApprovalRequisitionsPayload = {
+  notes?: string;
+  items: {
+    purchase_item_id: number;
+    accepted_date: string;
+    destination_warehouse_id: number;
+    delivery_document_number: string;
+    delivery_vehicle_plate: string;
+    document_index?: number;
+    received_quantity: number;
+    expedition_id: number;
+    transport_cost: number;
+    transport_cost_per_item: number;
+  }[];
+};
+
 export type UpdatePurchaseRequisitionsPayload =
   CreatePurchaseRequisitionsPayload;