How To Fix LTR2_DS_CHG_TECHSEL025 - Collection expressions for &1 from &2 deleted

SAP Error Message - Details

• Message type: E = Error

• Message class: LTR2_DS_CHG_TECHSEL - Change log messages of data set Technical Selection

• Message number: 025

• Message text: Collection expressions for &1 from &2 deleted

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message LTR2_DS_CHG_TECHSEL025 - Collection expressions for &1 from &2 deleted ?

  The SAP error message LTR2_DS_CHG_TECHSEL025 indicates that collection expressions for a specific data source (represented by &1) from a particular technical name (represented by &2) have been deleted. This typically occurs in the context of data extraction or data modeling in SAP BW (Business Warehouse) or SAP HANA environments.
  Cause:
  
  Deletion of Collection Expressions: The error is triggered when collection expressions that were previously defined for a data source have been removed or are no longer valid. This can happen due to changes in the data model, updates to the data source, or manual deletions.
  Technical Changes: Changes in the underlying data structure or data source configuration can lead to the invalidation of existing collection expressions.
  Transport Issues: If changes were transported from one system to another (e.g., from development to production), and the transport did not include all necessary objects, it could lead to missing collection expressions.
  
  Solution:
  
  Recreate Collection Expressions: If the collection expressions were deleted intentionally or accidentally, you may need to recreate them. This can be done through the data modeling tools in SAP BW or HANA.
  Check Data Source Configuration: Review the configuration of the data source to ensure that it is set up correctly and that all necessary components are in place.
  Transport Validation: If the issue arose after a transport, verify that all relevant objects were included in the transport request. You may need to re-transport the missing objects.
  System Logs: Check the system logs for any additional error messages or warnings that could provide more context about why the collection expressions were deleted.
  Consult Documentation: Refer to SAP documentation or notes related to the specific version of SAP you are using for any known issues or additional troubleshooting steps.
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes that might address this specific error or provide guidance on handling collection expressions.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Data Modeling Best Practices: Familiarize yourself with best practices for data modeling in SAP BW or HANA to prevent similar issues in the future.
  
  If the problem persists after trying the above solutions, consider reaching out to SAP support for further assistance.