SAP Message 26174 - Version with change number & becomes valid in the future

Diagnosis
You enter a change number in order to create a new version.

System Response
The system checks the valid-from dates of the existing versions.

Procedure
This document has at least one version (with change number &V1&) thatbecomes valid later than the version you are currently processing.
This message warns you that you should check the versions of changenumber &V1&.