Hi,
"But i cant see my IBD in /SCWM/GRPE in the search"
Of course not. And why would you? This transaction is to create an inbound delivery based on an expected goods receipt. But you have already an inbound delivery. The search field offers to search for inbound deliveries, but I do not really now why.
And assignment of the delivery to the TU you do in /SCWM/TU.
Brgds
Juergen