Message type: E = Error
Message class:  SD_FREE_GOODS_MSG - Message class for Free Goods maintenance 
Message number: 008
Message text: Application '&1' not defined/supported.
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 SD_FREE_GOODS_MSG008 indicates that the application specified in the error message is not defined or supported in the context of free goods processing in the Sales and Distribution (SD) module. This typically occurs when trying to process free goods in a sales order or related transaction, and the system cannot find the necessary configuration for the specified application.
Cause: Missing Configuration: The application (e.g., sales order, delivery) is not configured to handle free goods in the system. Incorrect Application Code: The application code provided in the transaction may be incorrect or not recognized by the system. Custom Development: If there are custom developments or enhancements, they may not be properly integrated with the free goods functionality. Version Issues: The SAP version or support package level may not support the specific application for free goods processing.
Solution: Check Configuration: Go to the SPRO transaction and navigate to the configuration for free goods under Sales and Distribution. Ensure
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
SD_FREE_GOODS_MSG006 Condition validity start date is required.
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
SD_FREE_GOODS_MSG005 Condition validity end date is required.
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
SD_FREE_GOODS_MSG009 Condition table '&1' not defined/supported.
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
SD_FREE_GOODS_MSG010 Free goods type '&1' not defined.
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.