How To Fix CNV20551590 - Superior serive number &1 (&2) for &3 (&4) will not be deleted!

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV20551 - message for package 20551 (company code delete)

• Message number: 590

• Message text: Superior serive number &1 (&2) for &3 (&4) will not be deleted!

What causes this issue?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Services can be organized in a hierarchy. The service <(>&<)>V1& (
<(>&<)>V2& ), which is located above the service <(>&<)>V3&
(<(>&<)>V4& ) in the hierarchy, does not get deleted, whereas the
service <(>&<)>V3& ( <(>&<)>V4& ) gets deleted.

How to fix this error?

Warning!

Procedure for System Administrators

Find out if this partial deletion of a hierarchy is really correct, or
if other services should be deleted as well. Having made any necessary
adjustments, repeat the consistency check by executing the transaction
CNV_20551_MONITOR and selecting the display/maintenance function for the
object type ASNUM, where you find a function key for doing the
consistency check.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV20551590 - Superior serive number &1 (&2) for &3 (&4) will not be deleted! ?

  The SAP error message CNV20551590 typically relates to issues encountered during data migration or conversion processes, particularly when dealing with service numbers in the context of SAP's Conversion and Migration tools. This error indicates that a superior service number cannot be deleted due to certain constraints or dependencies.
  Cause:
  
  Dependency on Superior Service Number: The superior service number is likely being referenced by other objects or transactions in the system, which prevents its deletion.
  Data Integrity Constraints: SAP enforces data integrity rules that may prevent the deletion of certain records if they are still in use or linked to other records.
  Configuration Issues: There may be configuration settings that restrict the deletion of service numbers under certain conditions.
  
  Solution:
  
  Check Dependencies: Investigate if there are any dependent objects or transactions that are linked to the superior service number. You can use transaction codes like SE11 (Data Dictionary) or SE16 (Data Browser) to check for references in related tables.
  Review Configuration: Ensure that the configuration settings allow for the deletion of service numbers. This may involve checking the relevant customizing settings in the SAP system.
  Data Cleanup: If there are obsolete or unnecessary references to the superior service number, consider cleaning up those records first before attempting to delete the service number.
  Consult Documentation: Refer to SAP Notes or documentation related to the specific migration or conversion process you are using. There may be specific guidelines or prerequisites for deleting service numbers.
  Contact SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP Support for assistance. They may provide insights specific to your system configuration or the version of SAP you are using.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE11, SE16, and others that can help you analyze the data structure and dependencies.
  SAP Notes: Search for SAP Notes related to CNV20551590 or similar migration issues in the SAP Support Portal.
  Data Migration Tools: Understand the tools and methodologies used for data migration in SAP, as they may have specific requirements or limitations regarding data integrity and deletion.
  
  By following these steps, you should be able to identify the cause of the error and take appropriate action to resolve it.