I've created a custom matching rule and duplicate rule to stop Duplicate Accounts being created.
My criteria is as follows
(Name and Address Line 1) OR
(Name and postcode) OR
(Name and Town/City) OR
(Address Line 1 and Postcode) OR
(Address Line 1 and Country)
I have excluded certain current user profiles on the duplicate rules. Both are active.
I can't understand why it isn't firing. I have logged in as another user (system admin are exempt), created an account with same name and same address line 1 for example and I was not blocked from creating it.
It only seems to block me when all fields in the rule are exactly the same.