How To Fix WR189 - Error reading customer number of plant &

SAP Error Message - Details

• Message type: E = Error

• Message class: WR - Messages for Revaluation at Retail

• Message number: 189

• Message text: Error reading customer number of plant &

Self-Explanatory Message

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• What is the cause and solution for SAP error message WR189 - Error reading customer number of plant & ?

  SAP Error Message:
  
  WR189 - Error reading customer number of plant &
  
  Cause:
  This error typically occurs when SAP tries to read the customer number associated with a specific plant but fails. The root causes can include:
  
  The customer master data for the plant is missing or incomplete.
  The plant is not assigned to a customer in the system.
  Inconsistent or incorrect configuration in the customer-plant relationship.
  Data inconsistencies in tables like KNVP (Customer Master Partner Functions) or TVKOV (Customer-Plant assignments).
  Authorization issues preventing the system from reading the customer data.
  
  
  Explanation:
  In SAP SD (Sales and Distribution) or MM (Materials Management) modules, certain processes require the system to determine the customer number linked to a particular plant. For example, during sales order processing or delivery creation, the system needs to know the customer number for the plant to check pricing, shipping conditions, or partner functions.
  If the system cannot find or read this customer number, it throws the WR189 error.
  
  Solution:
  
  
  Check Customer-Plant Assignment:
  
  Verify that the plant is correctly assigned to a customer.
  Use transaction XD03 (Display Customer) or VD03 (Display Customer - Sales Area) to check if the customer master data includes the plant.
  Check the partner functions and ensure the plant is assigned properly.
  
  
  
  Verify Customer Master Data:
  
  Ensure the customer master record exists and is active.
  Check if the customer number is maintained for the plant in the relevant sales area.
  
  
  
  Check Configuration:
  
  In IMG, verify the assignment of plants to customers.
  Check if the plant is assigned to the correct sales organization and distribution channel.
  
  
  
  Check Table Entries:
  
  Look into tables like KNVP for partner functions related to the plant.
  Check TVKOV for plant-customer assignments.
  
  
  
  Authorization:
  
  Ensure the user has the necessary authorizations to read customer master data.
  
  
  
  Data Consistency:
  
  Run consistency checks or use transaction SE16/SE16N to verify data integrity.
  If inconsistencies are found, correct them via appropriate transactions or data maintenance.
  
  
  
  Debugging:
  
  If the above steps do not resolve the issue, debugging the program or user-exit where the error occurs can help identify the exact cause.
  
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  XD03 / VD03 – Display Customer Master
  MM02 – Change Material Master (to check plant data)
  SE16 / SE16N – Data Browser for table checks
  SPRO – IMG for configuration checks
  
  
  
  Tables:
  
  KNVP – Customer Master Partner Functions
  TVKOV – Customer-Plant assignments
  KNA1 – General Customer Data
  KNVV – Customer Sales Data
  
  
  
  Notes and SAP Help:
  
  Check SAP Notes related to WR189 for any patches or known issues.
  SAP Help Portal for customer master and plant assignment details.
  
  
  
  
  Summary:
  The WR189 error arises because SAP cannot find or read the customer number linked to a plant. The fix involves verifying and correcting the customer master data, plant assignments, and related configuration to ensure the system can correctly retrieve the customer number for the plant in question.