How To Fix CNV_IUUC_TCR_MAIN018 - Cannot update alias table (&1) for table &2 of cluster table &3

CNV_IUUC_TCR_MAIN018 - Overview

• Message type: E = Error

• Message class: CNV_IUUC_TCR_MAIN - transactional consistent replication main package

• Message number: 018

• Message text: Cannot update alias table (&1) for table &2 of cluster table &3

What causes this issue?

After creating the logging table and the respective alias tables, it was
not possible to store the alias table names in the respective control
table of the central system.

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?

Check table IUUC_TCR_TABLES2. This table should contain entries for each
alias table (that is, the relevant mass transfer ID and name of the
logical tables of the cluster table). If this is not the case, you can
try to remove this inconsistency by manually adding the entries to the
table.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

CNV_IUUC_TCR_MAIN018 - Details

• The SAP error message CNV_IUUC_TCR_MAIN018 indicates that there is an issue with updating the alias table for a specific table in a cluster table. This error typically arises during data migration or transformation processes, particularly when using the SAP Landscape Transformation (SLT) or SAP Data Services.
  
  Cause:
  The error can be caused by several factors, including:
  
  Table Locking: The target table may be locked by another process, preventing updates to the alias table.
  Data Consistency Issues: There may be inconsistencies in the data that prevent the update from being applied.
  Authorization Issues: The user executing the operation may not have the necessary permissions to update the alias table.
  
  Configuration Issues: There may be misconfigurations in the SLT or data transformation settings.
  Technical Issues: There could be underlying technical issues, such as database connectivity problems or issues with the database itself.
  
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check Table Locks:
  
  Use transaction codes like SM12 to check