How To Fix CNV20551788 - Table &1 must be run before table &2. But the seq. nos. are inconsistent.

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 788

• Message text: Table &1 must be run before table &2. But the seq. nos. are inconsistent.

What causes this issue?

Table &V1& is to be converted before Table &V2&, but the sequence number
of &V1& is greater than &V2&.

System Response

System checks for the fields SEQNUM in table CNVTABLES. System expects
that the sequence number of table &V1& is lesser than table &V2&.

How to fix this error?

Contact the development support.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV20551788 - Table &1 must be run before table &2. But the seq. nos. are inconsistent. ?

  The SAP error message CNV20551788 indicates that there is a sequence inconsistency between two tables during a data migration or conversion process. This error typically arises in the context of SAP's data migration tools, such as the SAP S/4HANA Migration Cockpit or other data conversion programs.
  Cause:
  The error occurs when the system expects a certain order of processing for the tables involved in the migration. Specifically, it means that the table identified as &1 must be processed before the table identified as &2, but the sequence numbers assigned to these tables are inconsistent. This can happen due to:
  
  Incorrect Configuration: The sequence of processing for the tables may not have been set up correctly in the migration configuration.
  Manual Changes: If there were manual changes made to the migration settings or the sequence numbers, it could lead to inconsistencies.
  Data Dependencies: There may be dependencies between the data in the two tables that require one to be processed before the other.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check Migration Configuration: Review the migration configuration settings to ensure that the sequence numbers for the tables are set correctly. Make sure that the table that needs to be processed first (table &1) is indeed configured to run before the second table (table &2).
  
  
  Adjust Sequence Numbers: If you find that the sequence numbers are incorrect, adjust them so that the processing order aligns with the dependencies between the tables.
  
  
  Review Documentation: Consult the SAP documentation or migration guides related to the specific migration scenario you are working on. This can provide insights into the expected sequence of processing.
  
  
  Run Pre-checks: If available, run any pre-checks or validation tools provided by SAP to identify potential issues before executing the migration.
  
  
  Consult SAP Support: If you are unable to resolve the issue, consider reaching out to SAP Support for assistance. They may have additional insights or patches that can help resolve the inconsistency.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide guidance on the migration process.
  Migration Cockpit: Familiarize yourself with the SAP S/4HANA Migration Cockpit and its functionalities, as it may provide tools to help manage data migration more effectively.
  Data Model: Understand the data model of the tables involved to ensure that you are aware of any dependencies that may affect the migration sequence.
  
  By following these steps, you should be able to identify and correct the sequence inconsistency causing the error CNV20551788.