Create PR using custom BAPI

Hi Experts,

We have a requirement where we need to read the data of Shopping cart  in SRM and created a PR in ECC. We copied the standard BAPI BAPI_REQUISITION_CREATE to a Z BAPI. the requirement is when we create the PR we should not trigger the release strategy. How do we do it? Or is there a way that we can PARK/HOLD the PR, like we do with SRM SC.

thanks,

sankar.