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

SAP Error Message - Details

• 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 copied or transferred to ensure that there are no duplicate keys. This may involve querying the database or reviewing the data in the relevant tables.
  Validate Configuration: Ensure that the configuration settings for the data transfer or copying process are correct. This includes checking the parameters and mappings used in the process.
  Data Cleansing: If the source data has integrity issues, perform data cleansing to correct any inconsistencies or missing key fields before attempting the operation again.
  Debug Custom Code: If the error is occurring in a custom program, debug the code to identify where the key copying is happening and ensure that it is handled correctly.
  Consult Documentation: Refer to SAP documentation or notes related to the specific transaction or process you are working with for any known issues or additional guidance.
  
  Related Information:
  
  Transaction Codes: Depending on the context, you may be using specific transaction codes (e.g., LSMW, BAPIs) that are relevant to data transfer.
  SAP Notes: Check SAP Notes for any updates or patches that may address this specific error.
  Support Forums: Consider searching or posting in SAP community forums for additional insights from other users who may have encountered the same issue.
  
  If the problem persists after trying the above solutions, it may be beneficial to engage with SAP support for further assistance.