How To Fix M8685 - You cannot enter a negative partial amount

SAP Error Message - Details

• Message type: E = Error

• Message class: M8 - Invoice Verification/Valuation

• Message number: 685

• Message text: You cannot enter a negative partial amount

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message M8685 - You cannot enter a negative partial amount ?

  The SAP error message M8685, "You cannot enter a negative partial amount," typically occurs in the context of inventory management or material document processing when a user attempts to enter a negative quantity for a partial amount in a transaction where it is not allowed.
  Cause:
  
  Negative Quantity Entry: The most common cause of this error is that the user is trying to enter a negative quantity for a material movement or transaction that does not support negative values. This can happen during goods receipt, goods issue, or transfer postings.
  Configuration Settings: The system may be configured to disallow negative quantities for certain materials or in specific scenarios.
  Incorrect Document Type: The document type being used may not allow for negative entries.
  Stock Type Restrictions: The stock type (e.g., unrestricted, quality inspection, blocked) may have restrictions on negative quantities.
  
  Solution:
  
  Check Quantity Entry: Ensure that the quantity you are trying to enter is positive. If you need to reduce stock, you should use a goods issue or a similar transaction that allows for negative quantities.
  Review Document Type: Verify that you are using the correct document type for the transaction. If you are trying to perform a transaction that requires a positive quantity, ensure you are not using a document type that only allows negative entries.
  Configuration Review: If you have the necessary permissions, check the configuration settings in the material management module to see if there are restrictions on negative quantities for the specific material or movement type.
  Consult with SAP Support: If the issue persists and you believe it should allow negative entries, consult with your SAP support team or refer to SAP Notes for any known issues or patches related to this error.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MB1A (Goods Issue), MB1B (Transfer Posting), and MB1C (Other Goods Movements) to understand where this error might occur.
  SAP Documentation: Review SAP documentation or help files related to inventory management and material movements for more detailed guidance on handling quantities.
  User Permissions: Ensure that you have the necessary permissions to perform the transaction you are attempting, as restrictions may also lead to errors.
  
  By following these steps, you should be able to identify the cause of the error and take appropriate action to resolve it.