After the system copy is finished, the system imports connectivity-related configuration data in form of table content from the file system using R3trans.
A parallel import, used to increase performance for example, can lead to error: "duplicate key'"
Error in SAP transport programm R3trans.
PCA, Post-Copy Automation, Import, R3Trans, duplicate key
Use R3trans-Version 23.08.19 or later. You can download the R3trans-Version for all supported kernel-code lines from SAP Software Download Center.
For more information, see SAP Note 2843838.