No accounting transaction variant assigned to &1/&2/&3

What causes this issue?

INCLUDE GLT2_GENERAL_1 OBJECT DOKU ID TX
INCLUDE GLT2_GENERAL_3 OBJECT DOKU ID TX
No accounting transaction variants can be assigned to the document.
The parameters that could be used to determine the assignment are:
Transaction code &V1&
MM movement type &V2&
FI document type &V3&

System Response

INCLUDE GLT2_GENERAL_6 OBJECT DOKU ID TX

How to fix this error?

Assign an accounting transaction variant to the document type
specified.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.