Symptoms
You log on to a contained database as a contained database user in Microsoft SQL Server 2014 Service Pack 1 (SP1). However, when you right-click the contained database in Object Explorer and then click Properties, you receive the following error messages:
Note
The module being executed is not trusted. Either the owner of the database needs to be granted authenticate permission or the module needs to be digitally signed. (Microsoft SQL Server Error: 15562)
Note
Login failed for user '<contuser>' (Microsoft SQL Server, Error: 18456)
Resolution
This problem was first fixed in the following cumulative update for SQL Server:
Cumulative Update 10 for SQL Server 2014
Cumulative Update 2 for SQL Server 2014 Service Pack 1
About cumulative updates for SQL Server
Each new cumulative update for SQL Server contains all the hotfixes and all the security fixes that were included with the previous cumulative update. Check out the latest cumulative updates for SQL Server:
SQL Server 2014 build versions
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
References
Learn about the terminology Microsoft uses to describe software updates.