There is a business process for the customer to constantly adjust each of supply and demand for products. So, the customer often need to edit or change vender accounts of Prod BOM on the daily production and purchasing plan, once to firm planned orders. This issue is just included in their process. It is a high impact to be mismatch of vender accounts between Prod BOM and Purchase order. Because customer cannot confirm it correctly, so the waste check of it occurs. It would be too huge time to complete due to many Production order handled every day. REPRO STEPS GROUP Steps to reproduce the issue. 1.Use Company USMF 2.Navigate to Product information management -> Products -> Released products Click New and setup “00test-c1” as followings General Item number: 00test-c1 Storage dimension group: SiteWH Tracking dimension group: None Item model group: MWA Purchase Vendor: US-101 Manage costs Item group: Audio Click PLAN -> ORDER SETTINGS -> Default order settings Default order type: Purchase order Click Save Navigate to Procurement and sourcing>All purchase orders   Create purchase order( Vendor : US-101, item : 00test-c1, Quantity: 100) Confirm (PURCHASE tab>ACTIONS )   Product receipt (RECEIVE tab>GENERATE) 3. Navigate to Product information management -> Products -> Released products Click New and setup “00test-p1” as followings General Item number: 00test-p1 Storage dimension group: SiteWH Tracking dimension group: None Item model group: MWA Engineer Production type: BOM Manage costs Item group: Audio Click PLAN -> ORDER SETTINGS -> Default order settings Default order type: Production Click ENGINEER -> BOM -> BOM versions Click New -> BOM and BOM version Name: Site: 1 Click OK Click New and enter as follows Item number: 00nss-p1 Warehouse: 11 Quantity: 1 Line type: Vendor Click Approval Click OK and X Click Approve Click Activate Click Save 4.Navigate to Production control -> Production orders -> All production orders Click New production order Item number: 00test-p1 Site: 1 Warehouse:11 Quantity: 1.00 Click PRODUCTION ORDER -> PROCESS -> Estimate Click PRODUCTION ORDER -> PRODUCTION DETAILS -> BOM Click Edit Vendor account: US-102 Click Save 5.Navigate to Procurement and sourcing -> Purchase orders -> All purchase orders Select the purchase order created by step 2 Actual result: Vendor account is not changed. Expected result: Vendor account should be changed or should set disable to edit Vendor account in Step 4. in this case.