You can customize the validation that is performed on the business object models that you create. Specifically, you can specify its severity level as Error, Warning, Info, or Ignore.
Procedure
Select Window > Preferences.
Expand Business Object Modeler and select Errors/Warnings. The following dialog is displayed:
If you want to change the severity level for a business object model problem, select from the drop-down list. When you have finished, click OK to make the changes and close the window, or Apply to put into effect any changes you have made and keep the dialog open.
The following Error/Warning Settings Changed dialog is displayed:
Click Yes to revalidate your workspace. Depending on the size of the workspace and the number of errors, there is a delay while the revalidation occurs.
Note: This rebuilds every Project in the workspace. This could cause the deployment of any Projects that are set to deploy automatically on save.
Click No to revalidate your workspace later. The revalidation will take place when the business object file next changes or is saved, or when you explicitly request a rebuild of the project or workspace.
Click Cancel if you do not wish to apply your changes.