tricky ITS issue

Hi,

I have a z transaction zpz13 to maintain abseneces for an employee.

When I run it via ITS webGUI it's fine - the search helps work.

If I create a standalone ITS service zpz13 and set ~generatedynpro to 1 the page displays but none of the search helps work.

Can anyone help with info as what I'm doing wrong in my standalone transaction? SAP OSS just told me it's unsupported but I don't know why....

Further info...

We are using ECC 5 and the integrated ITS.

Any info around creating standalone ITS services for integrated ITS greatfully recieved. This aint my speciality...

Thanks

J