How To Fix WT237 - Error while starting RFC: Different PBT groups cannot be initialized

SAP Error Message - Details

• Message type: E = Error

• Message class: WT - Retail: Replenishment

• Message number: 237

• Message text: Error while starting RFC: Different PBT groups cannot be initialized

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• What is the cause and solution for SAP error message WT237 - Error while starting RFC: Different PBT groups cannot be initialized ?

  SAP Error Message:
  
  WT237 - Error while starting RFC: Different PBT groups cannot be initialized
  
  Cause
  This error occurs in SAP Warehouse Management (WM) when trying to start an RFC (Remote Function Call) session related to the PBT (Process-Oriented Storage Control) functionality. The message indicates that there is an attempt to initialize or start RFC calls for different PBT groups simultaneously, which is not allowed.
  PBT groups are used in process-oriented storage control to group storage bins or warehouse processes. The system expects that RFC calls related to PBT are handled per group, and mixing different groups in one RFC session leads to this error.
  Typical causes include:
  
  Configuration or customization issues where multiple PBT groups are incorrectly assigned or mixed in the same process.
  Incorrect or inconsistent data in the warehouse management master data or process-oriented storage control settings.
  Programming or user errors where the RFC call is triggered with parameters that span multiple PBT groups.
  
  
  Solution
  
  
  Check PBT Group Assignments:
  
  Verify the PBT group assignments in the warehouse master data.
  Ensure that the process-oriented storage control is configured correctly and that each RFC call is related to only one PBT group.
  
  
  
  Review Custom Code or User Exits:
  
  If custom developments or user exits are involved in triggering the RFC, check that the code does not mix PBT groups in one call.
  Adjust the logic to handle one PBT group per RFC call.
  
  
  
  Correct Warehouse Process Configuration:
  
  In transaction SPRO ? Logistics Execution ? Warehouse Management ? Strategies ? Process-Oriented Storage Control, verify the PBT group settings.
  Make sure that the warehouse process steps and storage bins are assigned correctly and consistently.
  
  
  
  Check RFC Call Parameters:
  
  When starting the RFC, ensure that the parameters passed correspond to a single PBT group.
  Avoid combining multiple groups in one RFC call.
  
  
  
  SAP Notes and Support:
  
  Check for any relevant SAP Notes that address this error for your SAP version.
  If the problem persists, consider raising a support ticket with SAP, providing details of the PBT group configuration and the RFC call context.
  
  
  
  
  Related Information
  
  
  Process-Oriented Storage Control (PBT):
  
  PBT is a WM functionality that allows warehouse processes to be controlled based on process steps and storage bin groups (PBT groups).
  
  
  RFC (Remote Function Call):
  
  RFC is a communication interface in SAP that allows function modules to be called remotely. In WM, RFCs are often used to communicate between different systems or processes.
  
  
  Transactions and Configuration Paths:
  
  SPRO ? Logistics Execution ? Warehouse Management ? Strategies ? Process-Oriented Storage Control
  LS24 (Display Storage Bin) to check PBT group assignments
  LS01N/LS02N to maintain storage bins and their PBT group assignments
  
  
  
  SAP Notes:
  
  Search the SAP Support Portal for notes related to error WT237 or PBT group initialization issues.
  
  
  
  Summary
  
  
  
  Aspect
  Details
  
  
  
  
  Error
  WT237 - Different PBT groups cannot be initialized during RFC start
  
  
  Cause
  Attempt to initialize RFC with multiple PBT groups simultaneously
  
  
  Solution
  Ensure RFC calls are made per single PBT group; verify PBT group assignments and config
  
  
  Check
  Warehouse master data, process-oriented storage control config, custom code logic
  
  
  Tools
  SPRO, LS24, LS01N/LS02N, SAP Notes
  
  
  
  
  If you provide more details about the context (e.g., transaction, process step, custom code), I can help with more specific guidance.