How To Fix RSANA_UMM_API326 - Mismatched keys. Check that the keys match for input and output.

SAP Error Message - Details

• Message type: E = Error

• Message class: RSANA_UMM_API - UMM API Messages

• Message number: 326

• Message text: Mismatched keys. Check that the keys match for input and output.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSANA_UMM_API326 - Mismatched keys. Check that the keys match for input and output. ?

  The SAP error message RSANA_UMM_API326 with the description "Mismatched keys. Check that the keys match for input and output" typically occurs in the context of data processing or data transfer operations, particularly when using the SAP BW (Business Warehouse) or SAP HANA systems. This error indicates that there is a discrepancy between the keys used in the input data and those expected in the output data.
  Causes:
  
  
  Key Mismatch: The most common cause is that the keys (such as IDs or unique identifiers) in the input data do not match the keys expected in the output data. This can happen if:
  
  The input data has been modified or corrupted.
  The data source and target structures are not aligned.
  There are missing or extra keys in the input data.
  
  
  
  Data Model Changes: If there have been recent changes to the data model (e.g., changes in InfoObjects, InfoProviders, or transformations), it may lead to mismatches.
  
  
  Incorrect Mapping: The mapping between the source and target fields may not be correctly defined in the transformation or data flow.
  
  
  Data Type Issues: Differences in data types or formats between the input and output can also lead to key mismatches.
  
  
  Solutions:
  
  
  Check Input Data: Verify the input data for completeness and correctness. Ensure that all required keys are present and match the expected format.
  
  
  Review Data Model: If there have been changes to the data model, review the changes to ensure that the mappings and structures are still valid.
  
  
  Transformation Logic: Check the transformation logic to ensure that the mapping between source and target fields is correctly defined. Make sure that the keys are being mapped correctly.
  
  
  Data Consistency: Ensure that the data in the source and target systems is consistent. If necessary, perform data cleansing or reconciliation.
  
  
  Debugging: Use debugging tools in SAP to trace the data flow and identify where the mismatch occurs. This can help pinpoint the exact location of the issue.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to the specific version of SAP you are using, as there may be known issues or patches available.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  Transaction Codes: Use transaction codes like RSA1 (Data Warehousing Workbench) or RSMO (Monitor Data Load) to monitor and analyze data loads.
  Community Forums: Engage with SAP community forums or support channels for additional insights and solutions from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify and resolve the cause of the RSANA_UMM_API326 error in your SAP environment.