Unable to find OData service: /IWPGW/TASKPROCESSING and PFCG role /IWPGW/RT_WF_USR

Hi Guys,

We are using S/4HANA 1511 version.

we are using one system as an embedded system for both front end and back end for demo on fiori apps.

we are implementing My Inbox - Approve Purchase Order app

We have installed component: UIX01CA1 VERSION 200 and SAP_GWFND release 750.

We couldnt find the below OData Service:

/IWPGW/TASKPROCESSING

But we could find the OData service: C_PURCHASEORDER_FS_SRV but while activating it we are getting an ABAP dump.

And, i couldnt find the PFCG roles: /IWPGW/RT_WF_USR(this is a role template and i couldnt find it), SAP_BCR_MM_PO_APPROVE.

Please advise.

Thanks