Data Picker field not auto populating in other BP record
I have two BP's, BP1 and BP2, BP2 is auto creating from BP1. I created Data Picker field in BP1, to pick the record from same BP.
Now when BP2 is autocreating, Data Picker field value is not getting populated with value I am selected in BP1, but returning the record number of BP1 from which auto creation is happening.
Any suggestions please ?