Maintain accounting data for supplier &

What causes this issue?

The accounting data for the supplier has not been maintained in the
company code.

How to fix this error?

If you are authorized to maintain accounting data and work in more than
one session, you can create a new session via the menu <LS>System</> -->
<LS>Create session</>. In this session you can, via the menu
<LS>Accounting</> --> <LS>Financial Accounting</> --> <LS>Accounts
Payable</> --> <LS>Master Data</>, maintain the accounting data for the
supplier in the relevant company code. After you have saved your input,
return to the first session. After you press ENTER the system will now
find the accounting data. You move to the next screen and continue
processing.
If you have no authorization to maintain accounting data, please contact
the Financial Accounting department.

Error message extract from SAP system. Copyright SAP SE.