Message type: E = Error
Message class:  FINS_IC_CUST - Manage Currencies: Customizing 
Message number: 038
Message text: Reasonable data missing; source amt. fld. &1 (ledger &2 / comp. code &3)
The system didn't find any non-initial values in the database (ACDOCA)
for source currency type &V1&, and the combination of ledger &V2& and
company code &V3&. Therefore, the data conversion doesn't seem to be
feasible.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
You can check and adjust the currency types that are used in the project
configuration and for the combination of ledger &V2& and company code
&V3& in the Customizing activity
<DS:SIMG.FINSVC_LEDGER_IC>Define Settings for Currency Types</>.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message FINS_IC_CUST038 indicates that there is missing reasonable data in the context of intercompany transactions. Specifically, it points to a situation where the source amount field is not populated correctly for a given ledger and company code.
Cause: The error typically arises due to one or more of the following reasons: Missing Data: The source amount field is empty or not filled in the relevant document or transaction.
Configuration Issues: There may be issues with the configuration of intercompany settings in the system, such as missing mappings or incorrect settings. Data Entry Errors: Manual data entry errors can lead to missing or incorrect values in the relevant fields. Posting Period Issues: The posting period may be closed, preventing the entry of new data.
Solution: To resolve the error, you can take the following steps: Check the Document: Review the document or transaction that triggered the error. Ensure that the source amount field is populated correctly. Verify Configuration:
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
FINS_IC_CUST037 Data already exists for target amt. fld. &1 (ledger &2 / comp. code &3)
What causes this issue?  In the database (ACDOCA), data already exists for target currency type &V1&, which is used for the combination of led...
FINS_IC_CUST036 Currency type &1, used for ledger &2 / comp. code &3, does not exist.
What causes this issue?  Currency type &V1&, which is used in project &V4& for the combination of ledger &V2& and company code...
FINS_IC_CUST039 Source crcy type &1 used for ledger &2 / comp. code &3 is missing in BSEG
 The system issues an error message and will not allow you to continue with this transaction until the error is resolved. What causes this issue?  Cur...
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...
Click on this link to search all SAP messages.