How To Fix MW642 - Error calling FM 'MCW_GET_VALUES_FROM_INFOSTRUCT' (empty table)

SAP Error Message - Details

• Message type: E = Error

• Message class: MW - Messages IS-R / Allocation Tables

• Message number: 642

• Message text: Error calling FM 'MCW_GET_VALUES_FROM_INFOSTRUCT' (empty table)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MW642 - Error calling FM 'MCW_GET_VALUES_FROM_INFOSTRUCT' (empty table) ?

  The SAP error message MW642, which indicates an issue with the function module MCW_GET_VALUES_FROM_INFOSTRUCT, typically arises in the context of Material Management (MM) or Production Planning (PP) when the system is trying to retrieve data from an Info Structure but finds that the relevant table is empty.
  Cause:
  
  
  Empty Info Structure: The most common cause of this error is that the Info Structure being queried does not contain any data. This can happen if:
  
  The Info Structure has not been populated with data yet.
  The data has been deleted or not yet updated.
  The selection criteria used to retrieve data do not match any existing records.
  
  
  
  Incorrect Configuration: There may be issues with the configuration of the Info Structure itself, such as incorrect settings or missing data sources.
  
  
  Data Extraction Issues: If the data extraction process (like a background job) that populates the Info Structure has failed or has not been executed, it can lead to an empty table.
  
  
  Solution:
  
  
  Check Data Population:
  
  Verify if the Info Structure has been populated with data. You can do this by checking the relevant transaction (e.g., MC21, MC22) to see if there are any entries in the Info Structure.
  If the Info Structure is empty, you may need to run the data extraction process to populate it. This can typically be done through the transaction code associated with the Info Structure (e.g., MCEX for extraction).
  
  
  
  Review Selection Criteria:
  
  Ensure that the selection criteria you are using to retrieve data are correct and that they match the data available in the Info Structure.
  
  
  
  Check Configuration:
  
  Review the configuration settings for the Info Structure to ensure that it is set up correctly. This includes checking the characteristics and key figures defined for the Info Structure.
  
  
  
  Run Data Update Jobs:
  
  If the Info Structure relies on periodic data updates, ensure that the relevant background jobs are scheduled and running correctly. You can check the job logs for any errors.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the specific Info Structure you are working with for any additional troubleshooting steps or known issues.
  
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  MC21: Create Info Structure
  MC22: Change Info Structure
  MC23: Display Info Structure
  MCEX: Execute Data Extraction
  
  
  
  Function Module: MCW_GET_VALUES_FROM_INFOSTRUCT is used to retrieve values from the Info Structure. Understanding its parameters and how it interacts with the Info Structure can help in troubleshooting.
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. You can search for the error message number or the function module name in the SAP Support Portal.
  
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP Basis or functional team for further investigation.