How To Fix CNV638 - Function no longer possible -> see long text

CNV638 - Overview

• Message type: E = Error

• Message class: CNV - Conversion: Messages for Conversion Services (CNCC)

• Message number: 638

• Message text: Function no longer possible -> see long text

What causes this issue?

If the ALV is called more than &V1& times in a program, this will lead
to a short dump (the maximum number of possible calls is limited by the
internal list processing of the ALV).

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?

If necessary, use the "refresh" function to refresh the display or
close the procedure monitor and open it again.

Error message extract from SAP system. Copyright SAP SE.

CNV638 - Details

• The SAP error message CNV638 "Function no longer possible -> see long text" typically occurs in the context of data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools. This error indicates that a certain function or operation cannot be executed due to specific conditions or constraints.
  Causes:
  
  Data Integrity Issues: The data being processed may not meet the required integrity constraints, such as missing mandatory fields or invalid data formats.
  
  Configuration Issues: The system may not be properly configured for the migration process, leading to the inability to execute certain functions.
  Version Compatibility: The error may arise if there are compatibility issues between the source and target systems, especially if the source system is outdated or not aligned with the target system's requirements.
  Migration Object Restrictions: Certain migration objects may have restrictions or prerequisites that have not been fulfilled, preventing the function from being executed.
  
  Solutions:
  
  Check Long