How to set the acutal dates in a maintenance order

Hi all,

we are implementing a mobile solution to do the time and material confirmations for maintenance order operations.

This mobile solution fills a Z-Table in SAP and we have a releasing process which is booking the real SAP confirmation for the order operation.

Since we are writting a Z-Table there is a time-gap between the technicians confirmation and the real SAP booking. In the order operation we want to fill the actual dates with custom code already when the Z-Table is filled. The fields we want to fill are ISDD, ISDZ and IEDD, IEDZ.

My question is:

Is there a function module to fill this fields which we could use?

Is there any dependency we need to keep in mind?

Thank you.

Kind regards

Manfred