Message type: E = Error
Message class:  UJA_CHECK_BIZ_RULES -  
Message number: 007
Message text: Business rule already exists in the system
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 UJA_CHECK_BIZ_RULES007 indicates that a business rule you are trying to create or modify already exists in the system. This error typically occurs in the context of SAP Business Rule Framework (BRF) or similar applications where business rules are defined and managed.
Cause: Duplicate Entry: The most common cause of this error is that the business rule you are trying to create has the same identifier or name as an existing rule in the system. Incorrect Configuration: There may be a misconfiguration in the way business rules are being defined or imported. System Migration or Data Import: If you have recently migrated data or imported business rules from another system, duplicates may have been created inadvertently.
Solution: Check Existing Rules: Navigate to the business rules management area in your SAP system and search for the rule using its name or identifier. If you find the rule, you can either modify it or delete
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
UJA_CHECK_BIZ_RULES006 Expression æ&1Æ is invalid
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
UJA_CHECK_BIZ_RULES005 Expression æ&1Æ is not a valid logical expression
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
UJA_CHECK_BIZ_RULES008 The RATE application is missing
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
UJA_CHECK_BIZ_RULES009 Method '&1' already exists
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.