How To Fix EPROD066 - Key was copied in &1 parameters

EPROD066 - Overview

• Message type: E = Error

• Message class: EPROD - Messages for IS-U Master Data Templates

• Message number: 066

• Message text: Key was copied in &1 parameters

What causes this issue?

When you execute a master data template using the debugger, new objects
can be created under certain circumstances. If you call up the debugger
- without interrupting the mode, the keys of the newly created objects
are transferred as parameter values. This makes it easier to test
situations where data is changed:
During the initial execution, objects are created
During the second run, transfer the new object keys as parameters
When the master data template is created a second time, the new objects
are changed
Different master data templates can be used for the first and second
runs. Keys can only be copied when you use identical parameter names in
both test runs.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message EPROD066 - Key was copied in &1 parameters ?

  The SAP error message EPROD066, which states "Key was copied in &1 parameters," typically occurs in the context of data management or data transfer processes within SAP systems. This error indicates that there is an issue with the key fields being copied or transferred, which can lead to inconsistencies or conflicts in the data.
  
  Cause:
  
  Duplicate Keys: The error often arises when there are attempts to copy or transfer data that includes duplicate keys, which are not allowed in certain contexts.
  Incorrect Configuration: Misconfiguration in the data model or in the parameters being used for data transfer can lead to this error.
  Data Integrity Issues: If the source data has integrity issues, such as missing or incorrect key fields, this can trigger the error during processing.
  Custom Development: If there are custom programs or enhancements that manipulate data, they may not handle key fields correctly, leading to this error.
  
  
  Solution:
  
  Check for Duplicates: Review the data being