SAP Message WB019 - Version no. for customer &1 and assortment list &2 is in critical area

Diagnosis
The version number for new assortment lists for customer &v1& andassortment list type &v2& is approaching the maximum number possible.

System Response
The systerm tries to start again from the beginning of the range ofversion numbers. This is not possible, as old versions still exist.

Procedure
Delete old versions of the assortment list so that the system can startnumbering new versions from the beginning of the range.