How To Fix CNV_00001518 - &1 is a standard table. Settings maintenance not allowed. See long text.

CNV_00001518 - Overview

• Message type: E = Error

• Message class: CNV_00001 - Message class for CWB settings maintenance programs

• Message number: 518

• Message text: &1 is a standard table. Settings maintenance not allowed. See long text.

What causes this issue?

&V1& is a SAP standard table.Only SAP is allowed to perform settings for
standard table. If this table definition was delivered with conversion
package then its settings should be correct and they should remain
unchanged.
If, however, this table was found during the search for customer tables
you should contact SAP support to obtain help resolving this issue.

System Response

If the settings for the table &V1& are not maintained correctly the
conversion will not run correctly.

How to fix this error?

If &V1& was found during the search activity contact SAP support by
opening the OSS message.

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.

CNV_00001518 - Details

• The SAP error message CNV_00001518 indicates that you are trying to make changes to a standard table, which is not allowed in the SAP system. This error typically arises during data migration or conversion processes, especially when using tools like the SAP S/4HANA Migration Cockpit or other data transfer methods.
  
  Cause:
  The error occurs because:
  
  You are attempting to modify a standard SAP table that is not meant to be changed directly.
  The system has restrictions in place to protect the integrity of standard tables, which are part of the core SAP functionality.
  
  
  Solution:
  To resolve this error, consider the following steps:
  
  
  Check the Table: Verify if the table you are trying to modify is indeed a standard table. You can do this by checking the table definition in the Data Dictionary (transaction SE11).
  
  
  Use Custom Tables: If you need to store custom data, consider creating a custom Z-table instead of modifying a standard table. This allows you