Please correct the debit/credit indicator for transaction &1 &2

What causes this issue?

You entered an incorrect value for the debit/credit indicator. The
value in the transaction table does not match the value derived from
the assignment to the internal transactions.
There are two possible causes:
the indicator is incorrect
the transaction assignment is incorrect

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 which of the two causes is responsible.

Procedure for System Administrators

INCLUDE ISU_PENCIL OBJECT DOKU ID TX

Error message extract from SAP system. Copyright SAP SE.