How To Fix FUCN_UI021 - Enter a customer, a vendor, or a G/L account

SAP Error Message - Details

• Message type: E = Error

• Message class: FUCN_UI - Message class for fucn ui

• Message number: 021

• Message text: Enter a customer, a vendor, or a G/L account

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message FUCN_UI021 - Enter a customer, a vendor, or a G/L account ?

  The SAP error message FUCN_UI021 typically occurs when a user attempts to execute a transaction that requires the specification of a customer, vendor, or general ledger (G/L) account, but none of these have been provided. This error is common in financial transactions or when working with accounts in SAP.
  
  Cause:
  The error is triggered when:
  
  The user has not entered any of the required identifiers (customer, vendor, or G/L account) in the relevant fields.
  The fields are left blank, or the input does not match any existing records in the system.
  There may be a configuration issue or a missing authorization that prevents the system from recognizing the input.
  
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check Input Fields: Ensure that you have entered a valid customer number, vendor number, or G/L account number in the appropriate fields. Double-check for any typos or incorrect entries.
  
  
  Use Search Help: If you are unsure of the correct