prevent duplicate records - combined key
I have a bridge table between two entity tables; a many-to-many relationship. For example, Beers, Distributers, Beer_Distributers. I want to prevent duplicate entries in the Beer_Distributers table...
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I have the same issue, but the solution doesn't work. i get this error "This formula is incompatible with this field being marked unique. Please change the formula or uncheck the unique checkbox."
Did you figure the solution?