External Identifier error Applying List binding LOV_AssignmentNumber with given set of values leads

Summary:

External Identifier error
Applying List binding LOV_AssignmentNumber with given set of values leads to multiple matching rows for a row of type:PersonEO_ExternalIdentifier_WorkerVOToExternalIdentifiersVO_ExternalIdentifiersVO, key oracle.jbo.Key[300016343085708 ]]

Content (please ensure you mask any confidential information):

Hi Team,

Greetings!

We are observing error with the data getting applied for EXternal Identifer as shown below-

Applying List binding LOV_AssignmentNumber with given set of values leads to multiple matching rows for a row of type:PersonEO_ExternalIdentifier_WorkerVOToExternalIdentifiersVO_ExternalIdentifiersVO, key oracle.jbo.Key[300016343085708 ]]

Has anyone come across this error? And how to get this fixed?

Thanks in advance!