How To Fix CNVMBT145 - Objects need to be regenerated (see longtext)

CNVMBT145 - Overview

• Message type: E = Error

• Message class: CNVMBT - Messages for MBT/API/PCL

• Message number: 145

• Message text: Objects need to be regenerated (see longtext)

What causes this issue?

You changed the reading type of one or more conversion object. Thus the
changed conversion objects need to be regenerated. This could be done
with the troubleshooter "Troubleshooter for Conversion Objects".

How to fix this error?

Access the troubleshooter "Troubleshooter for Conversion Objects" which
is assigned to the activity "Start Data Transfer". You could either
use the Auto-Determination-Modus. All objects which need to be generated
again will be determined and regenerated. Please note that the
auto-determination-mode might also find other objects which need to be
regenerated because settings were changed
use the Force Redefinition Mode and enter all objects for which you
changed the reading type
Affter regenerating the objects you could continue with the data
selection and data transfer.

Error message extract from SAP system. Copyright SAP SE.

CNVMBT145 - Details

• The SAP error message CNVMBT145, which states "Objects need to be regenerated (see longtext)," typically occurs in the context of data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that certain objects, such as data structures or transformation rules, need to be regenerated due to changes in the underlying data model or configuration.
  
  Cause:
  
  Changes in Data Model: The underlying data structures or models have been modified, which can happen during system upgrades or when new migration objects are introduced.
  Incomplete Migration Setup: The migration setup may not have been completed correctly, leading to inconsistencies in the objects that need to be processed.
  Version Mismatch: There may be a mismatch between the version of the migration tool and the version of the source or target system.
  
  
  Solution:
  
  
  Regenerate Objects: Follow the instructions in the long text of the error message to regenerate the affected objects. This