How To Fix CNV_10020801 - Prefix &1 is not supported; check your input

CNV_10020801 - Overview

• Message type: E = Error

• Message class: CNV_10020 - Message class for package 10020

• Message number: 801

• Message text: Prefix &1 is not supported; check your input

What causes this issue?

The special character '~' in a table field is used in order to
distinguish between tables and other type of objects. The prefix &V1& is
used to identify the object type. For the prefix &V1&, there is no
interface package assigned.

How to fix this error?

Check the object name.

Error message extract from SAP system. Copyright SAP SE.

CNV_10020801 - Details

• The SAP error message CNV_10020801 indicates that a specific prefix (denoted as &1) is not supported in the context of a conversion or migration process. This error typically arises during data migration activities, especially when using SAP's tools for data conversion, such as the SAP S/4HANA Migration Cockpit or other data migration tools.
  
  Cause:
  
  
  Unsupported Prefix: The prefix you are trying to use is not recognized or supported by the system. This could be due to:
  
  The prefix being incorrectly defined in the system.
  The prefix being part of a naming convention that is not allowed or recognized by the migration tool.
  The prefix being associated with a data object that is not compatible with the current migration scenario.
  
  
  
  
  Configuration Issues: There may be configuration settings in the migration tool that do not allow for certain prefixes.
  
  
  Data Model Changes: If you are migrating from an older version of SAP to a newer one (like S/4HANA), there