AdHoc Approver don't show up when using BADI-WF (WS14000133)

Hi Gyus,

I'm developing an approval process with the n-step BADI Approval WF (WS14000133) on an SRM 5.5 One-Client System (BE is ERP6.0).

Everything works fine so far, defining several approval steps, realising already approver levels, having multiple approvers in one step, etc.

Now I tested the functionality of adding an adhoc approver. Unfortunately this doesn't work because in the next round-trip this approver doesn't show up. But it is also not passed into the BADI so that I can remember this approver. Might this be a problem of the WFL security level of the user who addes this adhoc approver?

Does anyone of you have an idea or hint?

Kind regards,

Thomas