1. Path: Procurement and sourcing << setup << procurement and sourcing parameters.
2. Activate the change management.
3. Vendor: 1002 has activated the change management.
. Vendor:1001 doesn’t activate the change management.
5. Accounts payable << purchase orders << All purchase orderws.
6. Create purchase order with vendor:1001 does not activated the change management.
7. Created the purchase order.
8. Go to the header and change the vendor to 1002 which has activated the change management. And save the purchase order.
9. Vendor account has changed back to the 1001 vendor.

Actual Results: We have created the purchase order with the vendor:1001 without activated change management. Go to the header and change the vendor:1002 activated change management the vendor should not changed.
Expected Results: The user gets an information that the change from supplier without activated change management to the supplier with change management is not possible. The vendor:1001 should be changed to 1002 vendor.