How To Fix FUCN_UI002 - No negative posting is allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: FUCN_UI - Message class for fucn ui

• Message number: 002

• Message text: No negative posting is allowed

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 FUCN_UI002 - No negative posting is allowed ?

  The SAP error message FUCN_UI002: No negative posting is allowed typically occurs in the context of financial transactions, particularly when dealing with postings in the SAP system that do not permit negative amounts. This error is often encountered in modules like SAP Financial Accounting (FI) or Controlling (CO).
  
  Cause:
  
  
  Negative Amount Posting: The primary cause of this error is an attempt to post a transaction with a negative amount in a context where negative postings are not allowed. This could happen in various scenarios, such as:
  
  Trying to reverse a transaction that is not set up to allow negative postings.
  Posting a credit entry when the system is configured to only allow debit entries or vice versa.
  Incorrect configuration of the account settings in the chart of accounts or the posting rules.
  
  
  
  Account Configuration: Certain accounts may be configured to disallow negative postings. This is often the case for revenue accounts or certain expense accounts.
  
  
  Transaction Type