How To Fix FG018 - Determination of the clearing date is not clear

FG018 - Overview

• Message type: E = Error

• Message class: FG - Program Error Messages

• Message number: 018

• Message text: Determination of the clearing date is not clear

What causes this issue?

You can either specify the clearing date or else it is transferred from
the youngest document in a group which can be cleared.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Either specify a clearing date or set the "Clearing date from youngest
document" flag.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

FG018 - Details

• The SAP error message FG018, "Determination of the clearing date is not clear," typically occurs in the context of financial transactions, particularly when dealing with clearing accounts or payment processing. This error indicates that the system is unable to determine a valid clearing date for a transaction, which is essential for processing payments or clearing open items.
  Causes:
  
  Missing Configuration: The clearing date determination may not be properly configured in the system. This can happen if the necessary settings in the financial accounting (FI) module are incomplete or incorrect.
  Incomplete Master Data: The master data for the relevant accounts (e.g., vendor or customer accounts) may be incomplete or missing necessary information that affects the clearing date.
  Transaction Type Issues: The specific transaction type being processed may not have a defined clearing date logic.
  Posting Period Issues: The posting period may be closed or not open for the transaction date, which can prevent the system from