SAP Message 01379 - Error when saving the ALE distribution model in child system &1

Diagnosis
The ALE distribution model used by the Central User Administrationcould not be distributed to child system &v1&.

Procedure
In the central system, start transaction BD64. Distribute the ALEdistribution model manually.
After successful distribution, restart transaction SCUA. Include thechild system &v1& in the system landscape again. Choose Save toactivate the Central User Administration.