How To Fix WP638 - Customizing for plant & stops automatic purchase order generation

SAP Error Message - Details

• Message type: E = Error

• Message class: WP - Messages from POS interface

• Message number: 638

• Message text: Customizing for plant & stops automatic purchase order generation

What causes this issue?

It has been defined in plant &V1& in POS inbound prfoile &V2& for
processing the POS goods movements that automatic purchase order
generation in goods receipt is not to be permitted.

System Response

INCLUDE ISR_STOP

How to fix this error?

Check the data transferred by plant &V1& or change the Customizing
settings for POS inbound profile &V2&.

Error message extract from SAP system. Copyright SAP SE.

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• What is the cause and solution for SAP error message WP638 - Customizing for plant & stops automatic purchase order generation ?

  SAP Error Message:
  
  WP638 - Customizing for plant & stops automatic purchase order generation
  
  Cause:
  The error message WP638 occurs when the system detects that the automatic purchase order (PO) generation is stopped or not allowed for the specific plant involved in the process. This usually means that the plant's configuration in the SAP system has been set to prevent automatic PO creation, either intentionally or due to missing or incorrect customizing settings.
  In other words, the system checks the plant-specific settings for automatic PO generation, and if the plant is configured to stop or block this process, the error WP638 is triggered.
  
  Where does this happen?
  
  Typically during automatic purchase order creation processes such as:
  
  Automatic purchase requisition conversion to purchase order
  Automatic PO generation from MRP or other procurement processes
  
  
  The system checks plant-specific settings in the customizing tables.
  
  
  Cause Details:
  
  The plant is set to stop automatic PO generation in the customizing.
  This setting is controlled in the IMG under Materials Management (MM) ? Purchasing ? Purchase Order ? Automatic Purchase Order Generation.
  The relevant customizing table or setting might be missing or set to "stop" for the plant in question.
  
  
  Solution:
  
  
  Check Plant Customizing for Automatic PO Generation:
  
  Go to transaction SPRO ?
  
  Materials Management ?
  
  Purchasing ?
  
  Purchase Order ?
  
  Automatic Purchase Order Generation ?
  
  Define Plant-Specific Settings for Automatic PO Generation
  
  
  
  Verify the settings for the plant:
  
  Ensure that the plant is not set to stop automatic PO generation.
  If the plant is set to stop, change the setting to allow automatic PO generation.
  Save and transport the changes if necessary.
  
  
  
  Check related configuration:
  
  Verify if the plant is correctly assigned to the purchasing organization.
  Check if the plant is active and properly maintained in the system.
  Review if any user-exits or custom logic is preventing automatic PO creation.
  
  
  
  Test the process again:
  
  After correcting the customizing, try to generate the automatic purchase order again.
  
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SPRO - Customizing Implementation Guide
  ME21N - Create Purchase Order (manual)
  ME59N - Automatic PO generation from purchase requisitions
  MD04 - Stock/Requirements List (to check MRP results)
  
  
  
  Tables:
  
  T024D - Purchasing Data for Plant
  T024E - Purchasing Groups
  T024 - Purchasing Organizations
  
  
  
  Notes and Documentation:
  
  SAP Help Portal on Automatic Purchase Order Generation
  SAP OSS Notes related to WP638 (search in SAP Support Portal)
  
  
  
  
  Summary:
  
  WP638 indicates that the plant's customizing settings prevent automatic PO generation.
  The solution is to adjust the plant-specific settings in the IMG to allow automatic PO creation.
  Verify plant and purchasing organization assignments and ensure no custom logic blocks the process.
  
  
  If you need further assistance, please provide details such as the plant code, purchasing organization, and the exact process where the error occurs.