Fiori: PO/ PR approval: Bad request

Hello all,

We have setup PO/PR approval Fiori applications on our demo system.

(Gateway hub embeded)

These apps are working fine to see the actual approval tasks.

However when doing the actual approval we get a bad request:

This is the URL that is called: http://host:port/sap/opu/odata/sap/GBAPP_PRAPPROVAL;o=LOCAL/ApplyDecision?WorkitemID=%27000000018016%27&DecisionKey=%27001%27&Comment=%27test%27

Please notice the o=LOCAL. If we delete this manually from the link the approval is working.

Could anybody tell me where this o=LOCAL is comming from?

Any help would be appreciated.

Thanks!

Kind regards,

Tim