Message type: E = Error
Message class:  FINS_IC_CUST - Manage Currencies: Customizing 
Message number: 042
Message text: Currency type &1 is already used in &2
Currency type &V1& is already used in &V2&. To avoid further
inconsistencies, currency type &V1& cannot be used as a target currency
type in a project to manage currencies.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
You can check the project configuration and ensure that the project
specific currency types are not already used by other applications such
as &V2&.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message FINS_IC_CUST042 indicates that a specific currency type (denoted as &1) is already in use in a particular context (denoted as &2). This error typically arises in the context of financial transactions or configurations where currency types are defined and managed.
Cause: Duplicate Currency Type Assignment: The currency type you are trying to assign or use is already assigned to another entity or configuration in the system.
Configuration Issues: There may be a misconfiguration in the financial settings or in the customizing settings related to currency types. Data Integrity Issues: The system may have integrity constraints that prevent the same currency type from being used in multiple places simultaneously.
Solution: Check Existing Assignments: Review the existing assignments of the currency type in the relevant configuration settings. You can do this by navigating to the relevant customizing transaction (e.g., SPRO) and checking the currency type assignments. Modify or Remove Duplicates: If you find that the
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
FINS_IC_CUST041 Missing configuration entry for extension ledger &1 and company code &2
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
FINS_IC_CUST040 Project configuration was changed after preparations were completed
What causes this issue?  The project configuration was changed after preparations of the current project were completed.System Response  Since interme...
FINS_IC_CUST043 Target crcy &1 doesn't exist in currency settings (ledger &2 / CoCode &3)
What causes this issue?  For the freely defined currencies 1 ? 8, the existence of the target currency is checked in the ledger settings.System Respon...
FINS_IC_CUST044 Source crcy type &1 in ledger &2 CoCode &3 is not valid for entry view
What causes this issue?  Source currency type <(>&<)>1 in ledger <(>&<)>2 Company Code <(>&<)>3 is not...
Click on this link to search all SAP messages.