Message type: E = Error
Message class:  PRC_CNV - Messages for Conversion Engine 
Message number: 025
Message text: Basis currency missing for exchange rate type &1
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 PRC_CNV025 indicates that there is a missing basis currency for a specified exchange rate type in the system. This error typically arises during processes that involve currency conversion, such as during data migration or when executing certain financial transactions.
Cause: Missing Configuration: The exchange rate type specified in the error message does not have a defined basis currency in the system. Incorrect Settings: The settings for currency conversion may not be properly configured in the system, leading to the absence of a basis currency for the specified exchange rate type. Data Migration Issues: If you are migrating data from another system, the necessary currency settings may not have been transferred correctly.
Solution: To resolve the PRC_CNV025 error, you can follow these steps: Check Exchange Rate Type Configuration: Go to the transaction code OB08 (Maintain Exchange Rates). Verify that the exchange rate type mentioned in the error message is correctly configured. Ensure that a basis currency is
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
PRC_CNV023 
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
PRC_CNV022 
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
PRC_CNV028 Ambiguous &1 / &2 exchange rate relations
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
PRC_CNV029 Division by zero
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.