Message type: E = Error
Message class:  /IWBEP/SBOD -  
Message number: 110
Message text: Property '&1&2&3' has got complex type and must set nullable to false
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/SBOD110 indicates that there is an issue with the definition of a property in an OData service. Specifically, the error states that a property has a complex type and that the nullable attribute must be set to false. This typically occurs when you are working with OData services in SAP Gateway and trying to define the structure of your data model.
Cause: Complex Type Definition: The property in question is defined as a complex type, which means it is expected to contain multiple fields or properties. Nullable Setting: In OData, complex types cannot be nullable. This means that if a property is defined as a complex type, it must always have a value and cannot be left empty or null.
Solution: To resolve this error, you need to adjust the definition of the property in your OData service: Check the Data Model: Go to the data model where the property is defined.
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
/IWBEP/SBOD109 Property name '&1' is not unique within inheritance hierarchy
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
/IWBEP/SBOD108 Complex Type '&1&2&3' defines inheritance cycle
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
/IWBEP/SBOD111 Entity Type '&1' defines more than one author property
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
/IWBEP/SBOD112 Entity Type '&1&2&3' defines more than one etag property
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.