upgrade of GBAPP_PR_APV

Hi All,

    We have redefined the service GBAPP_PR_APV  using new project ZGBAPP_PR_APV_EXT.   Now the system is upgraded and I see that a lots of new entities/association sets have been added to GBAPP_PR_APV which doesn't reflect in ZGBAPP_PR_APV_EXT.  We have some enhancements in ZGBAPP_PR_APV_EXT.

Now when we try to run the PR app after approval, it gives a dump saying "Association set 'HeaderItemComponents_AssocSet' references to disabled entity set 'HeaderItemDetailCollection' ".

But HeaderItemDetailCollection doesn't exist in the service before upgrade.

Can someone suggest how to update the ZGBAPP_PR_APV_EXT service without loosing my custom enhancements?

Appreciate your help.

Thanks,

Gopi