All ledgers could not be assigned

What causes this issue?

The system could not assigne all ledgers. The reason for this is
probably because the corresponding company code/global company has not
been completely maintained (missing fiscal year variant on the company
code, missing global company master data company code, etc.).

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Check the ledgers which were not assigned.

Error message extract from SAP system. Copyright SAP SE.