How To Fix CNV_IUUC_REPLICATION062 - No assignment of a key field structure for table &1 RELID &2

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_IUUC_REPLICATION - IUUC replication messages (HANA)

• Message number: 062

• Message text: No assignment of a key field structure for table &1 RELID &2

What causes this issue?

It is tried to define a data transfer (initial load and/or replication)
for table &SYST-MSGV1&.As this is an INDX-like table, it cannot be
directly replicated, but it is necessary to define an assignment of
logical tables to this table. These logical tables have a key structure
which is specific for the possible RELID values of table &SYST-MSGV1& .
The assignment of the appropriate key structure is missing for RELID
&SYST-MSGV2&.

System Response

The requested activity could not be performed for this table.

How to fix this error?

Maintain, in table IUUC_INDX_KEYDEF, the assignment of key structures to
all the possible RELID values of table &SYST-MSGV1&

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_IUUC_REPLICATION062 - No assignment of a key field structure for table &1 RELID &2 ?

  The SAP error message CNV_IUUC_REPLICATION062 indicates that there is no assignment of a key field structure for a specific table during the replication process. This error typically occurs in the context of SAP Landscape Transformation (SLT) replication, where data is being replicated from a source system to a target system.
  Cause:
  The error can be caused by several factors, including:
  
  Missing Key Field Assignment: The key fields for the specified table are not properly defined or assigned in the SLT configuration.
  Table Structure Changes: If the structure of the source table has changed (e.g., fields added or removed) and the SLT configuration has not been updated accordingly, this error may occur.
  Replication Configuration Issues: There may be issues with the replication configuration settings that prevent the correct identification of key fields.
  Inconsistent Data Model: The data model in the source system may not match the expected model in the target system.
  
  Solution:
  To resolve the error, you can follow these steps:
  
  
  Check Key Field Assignment:
  
  Go to the SLT configuration in the SAP system.
  Verify that the key fields for the specified table are correctly assigned. You can do this by navigating to the relevant table in the SLT configuration and checking the key field settings.
  
  
  
  Update SLT Configuration:
  
  If there have been changes to the source table structure, update the SLT configuration to reflect these changes. This may involve reassigning key fields or adjusting the replication settings.
  
  
  
  Reinitialize Replication:
  
  If necessary, you may need to reinitialize the replication for the affected table. This can be done by stopping the replication, making the necessary adjustments, and then starting the replication again.
  
  
  
  Check for Errors in the SLT Logs:
  
  Review the SLT logs for any additional error messages or warnings that may provide more context about the issue. This can help identify if there are other underlying problems.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error message. There may be patches or updates available that can resolve the issue.
  
  
  
  Contact SAP Support:
  
  If the issue persists after following the above steps, consider reaching out to SAP Support for further assistance. They can provide more detailed guidance based on your specific system configuration.
  
  
  
  Related Information:
  
  SLT Replication: SAP Landscape Transformation (SLT) is a tool used for real-time data replication from SAP and non-SAP sources to SAP HANA or other target systems.
  Key Fields: Key fields are essential for uniquely identifying records in a database table. Proper assignment of key fields is crucial for successful data replication.
  SAP Notes: SAP Notes are documents provided by SAP that contain information about known issues, fixes, and best practices. They can be searched in the SAP Support Portal.
  
  By following these steps, you should be able to diagnose and resolve the CNV_IUUC_REPLICATION062 error in your SAP environment.