Diagnosis
There is no assignment that ends on &V1&.
The method ARTICLE_MANDATORY_CHECK of the BAdIBADI_MATGRP_HIER_CHK was used to define that an assignment to thearticle hierarchy is mandatory. Consequently, at least one assignmentmust be valid without gaps to &V1&. If the material was attached toother nodes in the mean time, this requirement applies to the lastassignment.

System Response
The system cannot copy the entered assignments.

Procedure
Adjust the time periods of the assignments in such a way that at leastone assignment has an uninterrupted validity period to &V1&.