Log Changes in Planboard for Service Order

Dear all,

In our scenario we use the Service Planboard (CRM 40 + WFM Core) to assign service engineers to a service order. The assignments are visible in the service order through structure ET_SERVICE_ORDER_ASSIGN. The assignment itself is stored within table /SAPAPO/LRPASSGN. However when an assignment is deleted the record is deleted and thus no information is avaible on the user who deleted the record. Does anyone if this information is captured or how we can otherwise capture this information.

Regards,

Erik