When I save my 'Must be unique in combination with following attributes' with 1, 2 or 3 other attributes, Master Data only saves the first attribute, as I had only choose a 'Must be unique independently'. Any idea? Bug in MDS 2016 SP1? Thanks for your advice.
I found the solution here : https://connect.microsoft.com/SQLServer/Feedback/Details/3112582
Microsoft tell us:
The fix for this issue is included in the following updates:
I installed the KB and I upgraded my MDS database.
It solved all my problems with Business Rules :-)