How To Fix FKKINV428 - Enter a reversal task

FKKINV428 - Overview

• Message type: E = Error

• Message class: FKKINV - Invoicing in Contract Accounts Receivable and Payable

• Message number: 428

• Message text: Enter a reversal task

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 FKKINV428 - Enter a reversal task ?

  The SAP error message FKKINV428, which states "Enter a reversal task," typically occurs in the context of the SAP Convergent Charging or SAP Contract Accounts Receivable and Payable (FI-CA) modules. This error indicates that a reversal task is required for a specific transaction or invoice that you are trying to process.
  
  Cause:
  The error usually arises in the following scenarios:
  
  Reversal Required: You are attempting to process an invoice or a transaction that has already been posted and needs to be reversed before any further actions can be taken.
  Incorrect Transaction Type: The transaction type you are using may not allow for the action you are trying to perform without first reversing a previous entry.
  Missing Reversal Task: The system requires a specific reversal task to be entered, which has not been provided.
  
  
  Solution:
  To resolve the FKKINV428 error, you can follow these steps:
  
  
  Identify the Transaction: Determine which invoice or transaction is causing the error. You may