How To Fix RSTRAN873 - Comparison tables have different structures

SAP Error Message - Details

• Message type: E = Error

• Message class: RSTRAN - Messages for Transformation

• Message number: 873

• Message text: Comparison tables have different structures

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSTRAN873 - Comparison tables have different structures ?

  The SAP error message RSTRAN873, which states "Comparison tables have different structures," typically occurs during the process of data transfer or transformation in SAP BW (Business Warehouse) or during the execution of a query. This error indicates that the structures of the tables being compared do not match, which can lead to issues in data processing or reporting.
  Causes:
  
  Mismatched Data Structures: The most common cause is that the structures of the two tables being compared (e.g., InfoObjects, InfoProviders) have different fields or data types.
  Changes in Data Model: If there have been recent changes to the data model, such as adding or removing fields in the InfoObjects or InfoProviders, this can lead to discrepancies.
  Inconsistent Data Sources: If the data sources being used for the comparison are not aligned in terms of structure, this error can occur.
  Transport Issues: If changes were transported from one system to another (e.g., from development to production) and the structures were not synchronized, this can lead to this error.
  
  Solutions:
  
  Check Table Structures: Verify the structures of the tables involved in the comparison. Ensure that they have the same fields and data types.
  Update Data Model: If there have been changes to the data model, ensure that all relevant objects are updated accordingly. This may involve adjusting InfoObjects, InfoProviders, or queries.
  Rebuild Queries: If the error occurs during query execution, try to rebuild the query to ensure it reflects the current data model.
  Transport Consistency: Ensure that all transports have been executed correctly and that the target system has the same structure as the source system.
  Check for Missing Fields: If fields have been added or removed, ensure that all necessary fields are present in both tables.
  Use Transaction RSRV: You can use transaction RSRV to check for inconsistencies in the data model and perform repairs if necessary.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as RSRV (for checking data consistency) and RSA1 (for data modeling).
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Documentation: Review SAP documentation for best practices in data modeling and handling data transfer issues.
  Support: If the issue persists, consider reaching out to SAP support for further assistance.
  
  By following these steps, you should be able to identify the cause of the RSTRAN873 error and implement a solution to resolve it.