ABAP Sproxy objects transported first before PI Objects

Dear Experts,

This might be related to ABAP too,

But will the ABAP TR of Sproxy objects end up in error if the related Service Interfaces in PI have not been transported to the target system?

If yes, is it enough if we only transport the ESR objects (including the SI) to the target system so that the ABAP Sproxy objects does not end up in error.

Thank you,

Suwandi C.