How To Fix /SAPAPO/MVM189 - Error while reading source of supplies

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/MVM -

• Message number: 189

• Message text: Error while reading source of supplies

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/MVM189 - Error while reading source of supplies ?

  The SAP error message /SAPAPO/MVM189 indicates that there is an issue while reading the source of supplies in the Advanced Planning and Optimization (APO) module. This error typically arises in the context of supply chain planning, where the system is unable to retrieve or process the necessary data related to the sources of supply.
  Causes:
  
  Missing Master Data: The error may occur if there are missing or incomplete master data records for the materials, vendors, or locations involved in the planning process.
  Configuration Issues: Incorrect configuration settings in the APO system or in the integration with the ERP system can lead to this error.
  Data Inconsistencies: Inconsistencies in the data between the APO and ERP systems, such as differences in material availability or supply chain parameters.
  Authorization Issues: Lack of proper authorizations for the user trying to access the source of supply data.
  Technical Issues: System performance issues, such as database locks or connectivity problems, can also lead to this error.
  
  Solutions:
  
  Check Master Data: Ensure that all relevant master data (materials, vendors, locations) is complete and correctly maintained in both the APO and ERP systems.
  Review Configuration: Verify the configuration settings in the APO system, especially those related to supply planning and source of supply determination.
  Data Consistency Check: Perform a consistency check between the APO and ERP systems to identify and resolve any discrepancies in the data.
  Authorization Check: Ensure that the user has the necessary authorizations to access the source of supply data.
  System Performance: Monitor system performance and check for any database locks or connectivity issues that may be affecting data retrieval.
  Debugging: If the issue persists, consider using debugging tools to trace the error and identify the root cause.
  
  Related Information:
  
  Transaction Codes: You may want to use transaction codes like /SAPAPO/MVM to access the relevant planning views or /SAPAPO/SDP94 for supply network planning.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide patches and updates.
  Documentation: Refer to the official SAP documentation for APO to understand the configuration and master data requirements better.
  
  If the issue continues after trying the above solutions, it may be beneficial to consult with your SAP Basis or APO support team for further assistance.