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 already received (GR posted) for the PO item.
  Compare with the quantity you are trying to post in the current GR.
  
  
  
  Adjust the GR Quantity:
  
  Ensure that the quantity you enter in the Goods Receipt does not exceed the remaining PO quantity.
  If you need to post a quantity larger than the PO quantity, you must first update the PO accordingly (if allowed).
  
  
  
  Check Tolerance Limits:
  
  Sometimes, the system allows a tolerance for over-delivery.
  Check the tolerance limits in the Purchasing Info Record or Vendor Master.
  If the tolerance is too low, you may need to adjust it or get approval for over-delivery.
  
  
  
  Check for PO Changes:
  
  If the PO was recently changed, ensure that the changes are reflected and consistent.
  Sometimes, a PO change can cause quantity mismatches.
  
  
  
  Use Transaction MIGO Correctly:
  
  When posting the GR in MIGO, ensure you select the correct PO and line item.
  Verify the quantity before posting.
  
  
  
  If Partial Deliveries are Allowed:
  
  Post GRs in multiple steps, ensuring cumulative GR quantity does not exceed PO quantity.
  
  
  
  Consult with Purchasing Department:
  
  If the quantity difference is due to a business reason (e.g., vendor delivered more), coordinate with purchasing to update the PO or handle the excess quantity.
  
  
  
  
  Related Information:
  
  Transaction Codes:
  
  ME23N: Display Purchase Order
  MIGO: Goods Movement (GR posting)
  ME22N: Change Purchase Order (if PO update is needed)
  
  
  SAP Notes:
  
  Check SAP Notes related to WP604 for any system-specific fixes or patches.
  
  
  Tolerance Settings:
  
  Maintain tolerance limits in transaction OMJJ or via vendor master data.
  
  
  Document Flow:
  
  Review document flow to see previous GRs and invoices related to the PO.
  
  
  
  
  Summary:
  The WP604 error is a safeguard to prevent posting a Goods Receipt quantity that exceeds the Purchase Order quantity. To resolve it, verify quantities, adjust GR quantity, check tolerances, and coordinate PO changes if necessary.
  
  If you need further assistance, please provide details such as the PO number, quantities involved, and the exact transaction you are using.