How To Fix WP604 - GR check for PO &. Quantity differences exist

SAP Error Message - Details

• Message type: E = Error

• Message class: WP - Messages from POS interface

• Message number: 604

• Message text: GR check for PO &. Quantity differences exist

Self-Explanatory Message

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• What is the cause and solution for SAP error message WP604 - GR check for PO &. Quantity differences exist ?

  The SAP error message:
  WP604 - GR check for PO &. Quantity differences exist
  typically occurs during the Goods Receipt (GR) process for a Purchase Order (PO). Here's a detailed explanation of the cause, solution, and related information:
  
  
  Cause:
  
  The error indicates that there is a quantity difference between the quantity being posted in the Goods Receipt and the quantity expected or allowed based on the Purchase Order.
  This can happen if:
  The quantity entered during GR exceeds the PO quantity.
  Partial deliveries have already been posted, and the current GR quantity plus previous GR quantities exceed the PO quantity.
  The PO line item has been changed or updated, causing a mismatch.
  The PO is blocked or has restrictions on quantity changes.
  
  
  The system performs a GR check to ensure that the total quantity received does not exceed the ordered quantity (or the allowed tolerance).
  
  
  
  Solution:
  
  
  Check PO Quantity and GR Quantity:
  
  Verify the PO quantity in ME23N (Display Purchase Order).
  Check the quantity