How To Fix UO124 - Enter the currency key for the corresponding ISO codes

UO124 - Overview

• Message type: E = Error

• Message class: UO - Maintain Currency Tables TCUR* for Euro Introduction

• Message number: 124

• Message text: Enter the currency key for the corresponding ISO codes

You have changed the currency key. Either the new currency key &v1& is
an ISO code or you have specified a link to an ISO code in your system
(table TCURC, field ISOCD: &v2&).
However, you have entered the currency key you changed in a line that
is assigned to a different ISO code (&v3&).

System Response

The system checks your entries for possible mistakes (typing errors for
example). To enable it to do this, you must enter the currency keys
such that they are all assigned to the appropriate ISO codes.

How to fix this error?

In the current line, enter the currency key that belongs to ISO code
&v3&. Enter currency key &v1& in the line with ISO code &v4&.

Error message extract from SAP system. Copyright SAP SE.

UO124 - Details

• The SAP error message UO124, which states "Enter the currency key for the corresponding ISO codes," typically occurs when there is an issue with currency configuration in the SAP system. This error is often encountered in transactions or processes that involve currency conversion or currency-related data entry.
  
  Cause:
  
  Missing Currency Key: The error usually arises when the system expects a currency key (like EUR for Euro, USD for US Dollar) but it is not provided or is incorrectly configured.
  Incorrect ISO Code: The ISO code entered does not match any existing currency key in the system.
  
  Configuration Issues: There may be issues in the configuration of currencies in the SAP system, such as missing entries in the currency table.
  Data Entry Errors: Users may have entered an incorrect or incomplete currency code in the relevant fields.
  
  
  Solution:
  
  
  Check Currency Configuration:
  
  Go to the transaction code OB08 (Maintain Exchange Rates) or OBY6 (Define Currencies) to verify that the currency