Valid to date &1 of assignment cannot lie after the &2

What causes this issue?

The "Valid to" date &V1& of the assignment lies after the "Valid to"
date &V2& of the node to which you want to assign the material. However,
you can only schedule an assignment until the end date of the node
validity period.

System Response

The system cannot copy the entered assignments.

How to fix this error?

Adjust the "Valid to" date of the assignments in such a way that they do
not lie after the &V2&.
The "Valid to" date was linked using the method
<ZK>VALIDITY_CHECK_FOR_ARTICLE</> of the BAdI <ZK>BADI_MATGRP_HIER_CHK
</>. In the standard system, this linkage is not activated and the check
error will not be issued.

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.