I made my first attempt at setting up duplicate rules, tested them in the Sandbox, migrated them to production, all was well - until my users started getting this error every time they tried to create a contact (regardless of whether it was actually a duplicate).
Apex trigger.npsp.TDTM_Contact caused an unexpected exception, contact your administrator: npsp.TDTM_Contact: execution of Beforeinsert caused by System.DmlException: Insert failed. First exception on row 0; first error: DUPLICATES_DETECTED. You're creating a duplicate record. We recommend you use an existing record instead.: []: (npsp)
I tried deactivating the duplicate rules one by one to pinpoint the problem, but that didn't help. I had to deactivate all of them.
Any ideas what this means and how to create duplicate rules that won't create this problem?
Thanks!
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