How To Fix CMM_TIER_PRC021 - Call-off quantity cannot be reduced due to existing inovice

SAP Error Message - Details

• Message type: E = Error

• Message class: CMM_TIER_PRC -

• Message number: 021

• Message text: Call-off quantity cannot be reduced due to existing inovice

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CMM_TIER_PRC021 - Call-off quantity cannot be reduced due to existing inovice ?

  The SAP error message CMM_TIER_PRC021 indicates that there is an issue with reducing the call-off quantity in a contract or scheduling agreement because there is an existing invoice that has already been created against that quantity. This typically occurs in scenarios involving procurement and contract management, particularly when dealing with call-off orders or blanket purchase orders.
  Cause:
  
  Existing Invoice: The primary cause of this error is that there is at least one invoice that has been created for the quantity you are trying to reduce. SAP does not allow the reduction of call-off quantities if it would affect the integrity of the invoicing process.
  Contractual Obligations: There may be contractual obligations that prevent the reduction of quantities once invoicing has begun.
  System Configuration: Certain configurations in the SAP system may enforce strict rules regarding quantity changes after invoicing.
  
  Solution:
  
  Check Invoices: Review the invoices that have been created against the call-off quantity. You can do this by checking the invoice history for the relevant purchase order or contract.
  Adjust Quantity: If you need to reduce the call-off quantity, you may need to first reverse or cancel the existing invoice(s) associated with that quantity. This can be done through the appropriate transaction codes (e.g., MIRO for invoice verification).
  Consult with Stakeholders: If reversing invoices is not feasible, consult with relevant stakeholders (e.g., finance, procurement) to discuss the implications and possible alternatives.
  Use Alternative Methods: If the reduction is necessary for business reasons, consider whether you can create a new call-off or adjust future quantities instead of modifying existing ones.
  System Configuration Review: If this is a recurring issue, it may be worth reviewing the system configuration with your SAP Basis or functional team to see if there are settings that can be adjusted to better accommodate your business processes.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as ME23N (Display Purchase Order), ME22N (Change Purchase Order), and MIRO (Invoice Verification).
  Documentation: Review SAP documentation or help files related to contract management and invoicing processes for additional insights.
  SAP Notes: Check for any SAP Notes that may address this specific error or provide guidance on handling similar situations.
  User Roles: Ensure that you have the appropriate permissions to make changes to invoices and purchase orders, as restrictions may also lead to this error.
  
  If the issue persists after following these steps, it may be beneficial to engage with your SAP support team or consult with an SAP expert for further assistance.