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

CN256 - Overview

• 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