I know that I can update my ECT record (using InfoPath forms I created for the external lists), by passing the BdcIdentity (ID) to the form and it will find that record and enable me to edit.
How do I edit a record without the BdcIdentity ID. Say I know some of the other IDs I need to uniquely identify a record. EG, MyID=1
How can I get the infopath form to retreive the record where column MyID=1?? so I can update.