Message type: E = Error
Message class:  FIAR_TAXREP - Message Class for Argentina Tax Reporting 
Message number: 039
Message text: Currency data not available for tax key &
Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.
To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.
Unfortunately, there isn't any extra information in this error notice.
First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).
Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.
You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.
The SAP error message FIAR_TAXREP039, which states "Currency data not available for tax key &," typically occurs in the context of tax reporting in the SAP system, particularly when dealing with tax keys and currency data in financial documents.
Cause: Missing Currency Data: The error usually indicates that the system cannot find the necessary currency data associated with the specified tax key. This can happen if: The tax key is not properly configured in the system. The currency settings for the tax key are missing or incomplete. The relevant tax codes or tax rates have not been defined for the currency in question.
Configuration Issues: There may be issues in the configuration of tax codes, tax keys, or the assignment of currencies to these tax elements. Data Inconsistencies: There might be inconsistencies in the master data or transactional data that prevent the system from retrieving the required currency information.
Solution: Check Tax Key Configuration: Go to the configuration settings for
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
FIAR_TAXREP038 History table not updated; check specified entries
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
FIAR_TAXREP037 History table successfuly updated
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
FIAR_TAXREP040 Tax details not available for selected entries
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
FIAR_TAXREP041 Print details not available for selected entries
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
Click on this link to search all SAP messages.