Message type: E = Error
Message class:  /IWBEP/SBOD -  
Message number: 350
Message text: Data source reference name '&1' not unique
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 /IWBEP/SBOD350 Data source reference name '&1' not unique typically occurs in the context of SAP Gateway or OData services when there is a conflict with data source reference names. This error indicates that the system has found multiple data sources with the same reference name, which is not allowed as it creates ambiguity in the service definition.
Cause: Duplicate Data Source References: The most common cause of this error is that there are multiple data sources defined with the same reference name in the system. This can happen if: Data sources were created manually and the same name was used. There are inconsistencies in the naming conventions used during the development of OData services. Transport Issues: If you are transporting objects between systems (e.g., from development to quality assurance), there might be conflicts if the same data source reference name exists in both systems.
Solution: To resolve this error, you can follow these
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
/IWBEP/SBOD331 Navigation Property Internal name '&1&2&3' is not unique
What causes this issue?  Navigation Property's Internal Name must be unique with respect to the parent Entity Type's Internal Name, other Na...
/IWBEP/SBOD330 Entity Set Internal Name '&1' is not unique
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
/IWBEP/SBOD351 Dependent Property &1 for referential constraint must not be complex type
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
/IWBEP/SBOD352 ABAP field name '&1' is not unique
What causes this issue?  The ABAP Field Name of the navigation property is not unique across the children of the entitySystem Response  Using a naviga...
Click on this link to search all SAP messages.