PR not transferred from ecc to SRM failing inbound in SRM

dear All

I am facing the below issue where when I transfer the PR to from SRM to ECC I am getting the below error in inbound

Strangely I do not have any Pur group org unit with the value 0000000000 I do not see the value at all in org structure

PLease advise on what may be missing and how to fix it ?

We are using PDP scenario with PI as the medium

I am not sure how the PI user would connect from ECC to SRM to create a SC ? Advise on the settings as well .