How To Fix CNV_OM_PRESEL020 - Preselection error for workset item: &1 (&2)

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_OM_PRESEL - Messages for LT Object Based Preselection

• Message number: 020

• Message text: Preselection error for workset item: &1 (&2)

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_OM_PRESEL020 - Preselection error for workset item: &1 (&2) ?

  The SAP error message CNV_OM_PRESEL020 indicates a preselection error for a workset item in the context of a data migration or conversion process, typically related to the SAP Conversion Tools or SAP Landscape Transformation (SLT). This error usually arises during the preselection phase of data migration when the system encounters issues with the data that is being processed.
  Cause:
  The error can be caused by several factors, including:
  
  Data Inconsistencies: The data being processed may have inconsistencies or issues that prevent it from being selected for migration.
  Configuration Issues: There may be configuration settings in the migration tool that are not set correctly, leading to the inability to preselect certain items.
  Missing Dependencies: The workset item may depend on other data or configurations that are not present or are incomplete.
  Authorization Issues: The user executing the migration may not have the necessary authorizations to access or process the workset item.
  Technical Errors: There could be technical issues in the system, such as database locks or connectivity problems.
  
  Solution:
  To resolve the CNV_OM_PRESEL020 error, you can take the following steps:
  
  Check Data Consistency: Review the data that is being processed for any inconsistencies or errors. Ensure that all required fields are populated and that the data adheres to the expected formats.
  Review Configuration Settings: Verify the configuration settings in the migration tool. Ensure that all necessary parameters are set correctly and that the workset item is properly configured for migration.
  Check Dependencies: Ensure that all dependencies for the workset item are met. This may involve checking related data or configurations that need to be in place before the item can be processed.
  User Authorizations: Confirm that the user executing the migration has the necessary authorizations to access and process the workset item. Adjust authorizations if needed.
  Consult Logs: Check the logs for more detailed error messages or warnings that can provide additional context about the issue.
  SAP Notes and Documentation: Look for relevant SAP Notes or documentation that may address this specific error. SAP frequently updates its knowledge base with solutions for common issues.
  Contact SAP Support: If the issue persists after trying the above steps, consider reaching out to SAP Support for further assistance.
  
  Related Information:
  
  SAP Notes: Search for SAP Notes related to CNV_OM_PRESEL020 for any specific patches or updates that may address this error.
  Migration Tools Documentation: Review the documentation for the specific migration tool you are using (e.g., SAP S/4HANA Migration Cockpit, SAP Data Services) for guidance on preselection errors.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify the root cause of the CNV_OM_PRESEL020 error and implement a suitable solution.