How To Fix NSDM_MIG_CONTROL164 - Cycle exists in predecessor definition(s) - see subsequent messages

SAP Error Message - Details

• Message type: E = Error

• Message class: NSDM_MIG_CONTROL - Log message for migration

• Message number: 164

• Message text: Cycle exists in predecessor definition(s) - see subsequent messages

Self-Explanatory Message

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• What is the cause and solution for SAP error message NSDM_MIG_CONTROL164 - Cycle exists in predecessor definition(s) - see subsequent messages ?

  The SAP error message NSDM_MIG_CONTROL164 indicates that there is a cycle in the predecessor definitions of a migration object. This typically occurs during data migration processes, such as when using the SAP Data Migration Cockpit or similar tools, where the system detects that there is a circular dependency in the way that objects are defined to be migrated.
  Cause:
  The cycle in predecessor definitions means that one or more objects are defined in such a way that they depend on each other in a circular manner. For example, if Object A is defined to be migrated before Object B, and Object B is defined to be migrated before Object A, this creates a cycle that the migration process cannot resolve.
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Review Predecessor Definitions: Check the predecessor definitions of the migration objects involved. Look for any circular dependencies where one object is dependent on another that, in turn, is dependent on the first.
  
  
  Modify Dependencies: Adjust the predecessor relationships to eliminate the cycle. This may involve changing the order of migration or redefining the dependencies so that they are linear rather than circular.
  
  
  Check Migration Object Configuration: Ensure that the configuration of the migration objects is correct and that there are no unintended dependencies.
  
  
  Consult Documentation: Refer to the SAP documentation for the specific migration tool you are using. There may be guidelines or best practices for defining predecessor relationships.
  
  
  Test Migration: After making changes, test the migration process again to ensure that the error has been resolved.
  
  
  Seek Help from SAP Support: If you are unable to resolve the issue, consider reaching out to SAP support for assistance. They may provide insights specific to your configuration or version of SAP.
  
  
  Related Information:
  
  Migration Cockpit: If you are using the SAP Migration Cockpit, familiarize yourself with its features and how it handles dependencies.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed.
  
  By carefully reviewing and adjusting the predecessor definitions, you should be able to resolve the cycle and proceed with your migration successfully.