How To Fix M8304 - Price unit = 0 is not allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: M8 - Invoice Verification/Valuation

• Message number: 304

• Message text: Price unit = 0 is not allowed

What causes this issue?

You entered zero for the new price unit. That is not allowed.

How to fix this error?

Enter a new price unit other than zero.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message M8304 - Price unit = 0 is not allowed ?

  The SAP error message M8304, which states "Price unit = 0 is not allowed," typically occurs in the context of material management and purchasing processes. This error indicates that a price unit of zero has been specified for a material or item in a transaction, which is not permissible in SAP.
  Cause:
  
  Incorrect Data Entry: The most common cause is that the user has inadvertently entered a price unit of zero in the purchase order, material master, or other related documents.
  Material Master Configuration: The material master record may not be properly configured, leading to a situation where the price unit is set to zero.
  Pricing Conditions: If pricing conditions are not set up correctly in the pricing procedure, it may lead to a zero price unit being calculated.
  Custom Code or User Exits: If there are custom developments or user exits that manipulate pricing data, they may inadvertently set the price unit to zero.
  
  Solution:
  
  Check the Transaction: Review the transaction where the error occurred (e.g., purchase order, sales order, etc.) and ensure that the price unit is set to a valid value (greater than zero).
  Review Material Master: Go to the material master record (transaction code MM03) and check the relevant views (e.g., purchasing, sales) to ensure that the price unit is correctly defined.
  Update Pricing Conditions: If applicable, check the pricing conditions in the pricing procedure (transaction code VK11) to ensure that they are set up correctly and that they do not lead to a zero price unit.
  Consult with Technical Team: If the issue persists and you suspect it may be due to custom code or user exits, consult with your technical team or SAP Basis team to review any custom developments that may affect pricing.
  Testing: After making the necessary changes, perform a test transaction to ensure that the error does not reoccur.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Documentation: Review SAP documentation on material management and pricing procedures for best practices.
  User Forums: Consider searching or posting in SAP community forums for additional insights from other users who may have encountered the same issue.
  
  By following these steps, you should be able to identify the root cause of the M8304 error and implement a solution to resolve it.