BMXAA3279E - Could not change PO xxxx status to APPR.
BMXAA1185E - The debit or credit general ledger account is not specified while trying to approve Purchase Orders.
Resolving the problem:
Add the RBNI Company-Related Account using Chart of Accounts application following the steps below:
1. Go to Chart Of Accounts application.
2. Select the Organization in question.
3. Select Action > Company-Related Accounts.
4. Add RBNI Account for each Company Type you may have.
6. Select Action > Update Database > Overwrite All Accounts > OK.
7. Sign out from Maximo and sign in again.
By the way, the POLINE.GLCREDITACCT field is hidden by default and it can be made visible using Maximo Application Designer.