https://userapps.support.sap.com/sap/support/knowledge/en/3662699
3662699 - DBSQL_DUPLICATE_KEY_ERROR in KEU5 | SAP Knowledge Base Article
A dump occurs during the execution of KEU* transactions, such as KEU1, KEU2, KEU3, and KEU5, with the error message: "DBSQL_DUPLICATE_KEY_ERROR" and exception...
sap knowledgeduplicatekeyerror