How To Fix CNVMBT157 - Follow-Up-Phase is not allowed to be changed

CNVMBT157 - Overview

• Message type: E = Error

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

• Message number: 157

• Message text: Follow-Up-Phase is not allowed to be changed

Self-Explanatory Message

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CNVMBT157 - Details

• The SAP error message CNVMBT157 indicates that a follow-up phase in a data migration or conversion process cannot be changed. This error typically arises in the context of SAP's Migration Cockpit or during data migration projects, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools.
  
  Cause:
  The error occurs when there is an attempt to modify a follow-up phase that is not allowed to be changed due to the current state of the migration process. This could be due to several reasons:
  
  Phase Locking: The follow-up phase may be locked because it is currently being processed or has already been executed.
  Dependencies: There may be dependencies on the follow-up phase that prevent changes from being made.
  
  Configuration Issues: The configuration settings for the migration project may not allow changes to certain phases once they have been initiated.
  
  
  Solution:
  To resolve the CNVMBT157 error, consider the following steps:
  
  
  Check Phase Status: Verify the status of