Hello Jaime,
Can you please check -
1) Account Determination group assigned to the material in the material -> Financial Data
2) Check in Charts activity by following below steps
- Business configuration work center
- Overview view
- Activity : "Charts of Accounts, Financial Reporting Structures, Account Determination"
- Click on Change immediately
- Click on Inventories under account Determination section of the screen
- Select the Account Determination profile as PRF1
- Follow the path as suggested in the error
Filter for the Account Determination group found for the step 1.
Can see the GL maintained there?
Regards,
Harshal