SAP Message CACSAC104 - Technical error: incorrect call of module CACS00_DOC_POST2

Diagnosis
The function module _DOC_POST2 (for internal use only) was calledincorrectly.

System Response
The document cannot be updated; processing is canceled.

Procedure
An error in the standard source text has occurred. Contact SAP supportfor an analysis and solution to the problem.
Note that module _DOC_POST2 is not released for use bycustomers. To create documents, use a function module such as_DOCUMENT.