Internal error calling communication structure for document &1

What causes this issue?

bis auf ersten Satz identisch mit WS 169, WS 170
Communication structure MCWBRK for document &V1& could not be compiled
Without the communication struture, it is not possible to update data in
the Logistics Information System.

System Response

No update is carried out for any of the documents currently being
processed. Data is not updated in the Logistics Information System for
either Settlement Management itself or subsequent settlement (business
volume or income (in the case of a settlement document)).

How to fix this error?

Contact your system administrator, as this situation should not occur.
It is probably due to a program error.

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.