How To Fix CNV20551016 - Package &1: SELECT-SINGLE-MODE was deactivated

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 016

• Message text: Package &1: SELECT-SINGLE-MODE was deactivated

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV20551016 - Package &1: SELECT-SINGLE-MODE was deactivated ?

  The SAP error message CNV20551016 indicates that the "SELECT-SINGLE-MODE" has been deactivated for a specific package. This error typically arises during data migration or conversion processes, particularly when using SAP's Data Migration tools or during system conversions.
  Cause:
  The error occurs because the system is trying to execute a SELECT SINGLE statement, but the mode for this operation has been deactivated. This can happen for several reasons, including:
  
  Configuration Settings: The system settings or configuration for the specific package may have been altered, leading to the deactivation of the SELECT SINGLE mode.
  Performance Considerations: In some cases, SELECT SINGLE may be deactivated to improve performance or to enforce a different data retrieval strategy.
  Custom Code or Enhancements: Custom developments or enhancements in the system may inadvertently deactivate this mode.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Configuration: Review the configuration settings for the package in question. Ensure that the SELECT SINGLE mode is enabled if it is required for your operations.
  
  
  Review Documentation: Consult the SAP documentation or notes related to the specific package to understand the implications of deactivating SELECT SINGLE mode and whether it can be reactivated.
  
  
  Adjust Code: If the error is caused by custom code, consider modifying the code to use an alternative data retrieval method, such as using a SELECT statement that retrieves multiple records and processes them accordingly.
  
  
  Contact SAP Support: If you are unable to resolve the issue through configuration or code adjustments, consider reaching out to SAP Support for assistance. They may provide specific notes or patches that address this issue.
  
  
  Testing: After making changes, ensure to test the functionality thoroughly to confirm that the error is resolved and that the system behaves as expected.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional context or solutions for this error.
  Transaction Codes: Familiarize yourself with transaction codes related to data migration, such as LSMW (Legacy System Migration Workbench) or other tools that may be relevant to your scenario.
  Performance Monitoring: If performance is a concern, consider monitoring the system's performance before and after making changes to understand the impact of reactivating SELECT SINGLE mode.
  
  By following these steps, you should be able to address the CNV20551016 error effectively.