How To Fix CN256 - Billing plan is not for negative values or quantities

SAP Error Message - Details

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 256

• Message text: Billing plan is not for negative values or quantities

What causes this issue?

You want to maintain an invoicing plan for a component which has a
negative value or quantity. This is not permitted.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CN256 - Billing plan is not for negative values or quantities ?

  The SAP error message CN256: Billing plan is not for negative values or quantities typically occurs in the context of billing plans or contracts in SAP, particularly when dealing with billing documents that involve negative amounts or quantities. This error indicates that the billing plan configuration does not allow for negative values, which can happen in various scenarios, such as credit memos or adjustments.
  Cause:
  
  Billing Plan Configuration: The billing plan may be set up to only allow positive values. This is common in standard billing scenarios where negative billing (like credit memos) is not permitted.
  Incorrect Document Type: The document type being used may not support negative billing. For example, if you are trying to create a credit memo using a billing plan that is configured for standard invoices, this error can occur.
  Quantity Issues: If the quantity being billed is negative, and the billing plan does not allow for negative quantities, this error will be triggered.
  Contract or Agreement Terms: The terms of the contract or agreement may specify that only positive billing is allowed.
  
  Solution:
  
  Check Billing Plan Configuration: Review the configuration of the billing plan in the SAP system. Ensure that it is set up to allow for negative values if that is required for your business process.
  
  Navigate to the relevant configuration settings in SPRO (SAP Project Reference Object) under Sales and Distribution (SD) or Contract Management.
  
  
  Use Correct Document Type: Ensure that you are using the correct document type for the transaction. If you are processing a credit memo, make sure to use a document type that supports negative billing.
  Adjust Quantity/Value: If you are trying to enter a negative quantity or value, consider whether this is necessary. If it is, you may need to adjust your approach or use a different transaction type.
  Consult with Business Process Owner: If you are unsure about the configuration or the appropriate document type, consult with your business process owner or SAP functional consultant to ensure compliance with business rules.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific patches or updates related to this error message. Sometimes, there may be known issues or fixes provided by SAP.
  Documentation: Review SAP documentation related to billing plans and contract management to understand the limitations and configurations available.
  Testing: If changes are made to the configuration, ensure to test the changes in a development or quality environment before moving to production.
  
  By addressing the configuration and ensuring the correct document types are used, you should be able to resolve the CN256 error in SAP.