How To Fix RW018 - FI/CO interface: Currency item entered several times

RW018 - Overview

• Message type: E = Error

• Message class: RW - Interface to Accounting

• Message number: 018

• Message text: FI/CO interface: Currency item entered several times

What causes this issue?

Currency information was transferred several times in the current
document. The keys for the currency data must, however, be unique.
Origin of the document: &v1&, &v2&

System Response

The document could not be posted.

How to fix this error?

This is a system error of the calling application.

Error message extract from SAP system. Copyright SAP SE.

RW018 - Details

• The SAP error message RW018, which states "FI/CO interface: Currency item entered several times," typically occurs in the context of financial transactions where currency items are being processed. This error indicates that the system has detected duplicate entries for currency items in the FI/CO interface, which can lead to inconsistencies in financial reporting and processing.
  
  Cause:
  
  Duplicate Entries: The most common cause of this error is that the same currency item has been entered multiple times in the transaction data. This can happen due to user error, data import issues, or incorrect configuration in the system.
  Data Migration Issues: If data has been migrated from another system, there may be duplicates that were not properly cleaned up before the migration.
  Configuration Errors: Incorrect settings in the configuration of the FI/CO interface can lead to the system not recognizing unique currency items correctly.
  
  
  Solution:
  
  Check for Duplicates: Review the transaction data to identify any duplicate currency items.