When you change a master record, the system logs these changes and generates the change documents. For each field, it stores the time of change, the name of the user, and the previous field contents.
How to display changes in Vendor master records?
Go to Accounting → Financial Accounting → Accounts Payable → Master Records → Display Changes.
Enter the Vendor Account number and the Company code and press Enter.
A new window will open. Select the changed field and click All Changes.