SAP Message RSM2711 - Several update records for the same PSA record. Not all invalid.

Diagnosis
Several records have been selected for update from PSA record numberV1. however, an error has occurred in this record. this is why thesystem has highlighted this PSA record in the PSA.
Not all of the update records that have been generated from PSA recordV1 are incorrect. at least one of them has been updated successfully.
If you correct the PSA record and update it a second time, several moreupdate records will be generated, including the record that has beenupdated already, effectivley duplicating this record.

System Response
The update process is terminated to prevent duplicate records beinggenerated.

Procedure
Correct the incorrect PSA records, delete the request from the datatarget, and update the request again.