How To Fix CNV_20100089 - Cyclic changes or temporary duplicates may occur; see long text

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_20100 - Messageclass for chart of account conversion

• Message number: 089

• Message text: Cyclic changes or temporary duplicates may occur; see long text

What causes this issue?

<DS:TX.CNV_MBT_CYCLIC_CHANGE>Cyclic changes</> or
<DS:TX.CNV_MBT_TEMP_DUPLICATES>temporary duplicates</> may occur.

System Response

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

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_20100089 - Cyclic changes or temporary duplicates may occur; see long text ?

  The SAP error message CNV_20100089 indicates that there are cyclic changes or temporary duplicates in the data during a data migration or conversion process. This error is typically encountered in the context of SAP's data migration tools, particularly when using the SAP S/4HANA Migration Cockpit or other data conversion tools.
  Cause:
  
  
  Cyclic Changes: This occurs when there are interdependencies between records that create a loop. For example, if record A references record B, and record B references record A, it can lead to a situation where the system cannot determine the correct order of processing.
  
  
  Temporary Duplicates: This can happen when the same record is being processed multiple times or when there are duplicate entries in the source data that are not being handled correctly during the migration.
  
  
  Solution:
  
  
  Data Analysis: Review the data being migrated to identify any cyclic dependencies or duplicates. This may involve checking foreign key relationships and ensuring that there are no circular references.
  
  
  Data Cleansing: Clean the source data to remove duplicates and resolve any cyclic dependencies. This may involve:
  
  Removing or consolidating duplicate records.
  Adjusting relationships to eliminate cycles.
  
  
  
  Migration Configuration: Ensure that the migration settings are correctly configured to handle the specific data structure and relationships in your source system.
  
  
  Batch Processing: If possible, break down the migration into smaller batches to isolate and address specific issues without affecting the entire dataset.
  
  
  Consult Documentation: Refer to the SAP documentation for the specific migration tool you are using. There may be specific guidelines or best practices for handling cyclic changes and duplicates.
  
  
  Error Logs: Check the detailed error logs provided by the migration tool for more context on the specific records causing the issue. This can help pinpoint the exact nature of the cyclic changes or duplicates.
  
  
  Related Information:
  
  SAP Notes: Look for relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Testing: After making changes to the data or migration configuration, conduct thorough testing to ensure that the issue has been resolved and that the data migration proceeds without further errors.
  
  By following these steps, you should be able to identify and resolve the underlying issues causing the CNV_20100089 error message.