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As per this documentation page of the Deduper extension, the Uninformative characters resolver should be able to detect names such as O.Donel / O Donel / O;Donel as duplicates, but after testing, I can't make it work as expected. I might be doing something wrong. ? Can anyone make a very simple test and try to reproduce the issue ? Scenario :

  • create 2 contacts with first name = John | Last name = ODonel | [email protected]
  • confirm that Deduper detects them as duplicate, using the "Name and Email" standard rule

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  • then introduce small variations in the last names, such as O_Donel / O Donel / O.Donel / O;Donel : this is where Deduper fails at finding duplicates. I have tried the following combinations :

Contact 1 / Contact 2

ODonel / O_Donel

O;Donel / O_Donel (as per the php code of the extension characters such as _ ; are removed for comparison purpose)

and many others, with no luck

Thx !

The Uninformative characters resolver. This strips a range of white space and punctuation characters out when comparing names. Currently the list is hard coded but I'm open to making it configurable. It also has a shorter list of characters that it will strip only if that resolves the conflict. For example a '.' is stripped in the uninformative characters resolver as that will mean later the initial resolver has a better chance of working.

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  • Have you tried testing on dmaster.demo.civicrm.org? The demo site is reset frequently, so is a good place to try out things to make sure it's not just something on your end. You can add the Deduper extension as usual on the demo site.
    – Lars SG
    Aug 16, 2023 at 17:22
  • Thx a lot for the advice, I didn't know this. Just tested on dmaster, same result as on my server. So it looks like a bug on Deduper extension from my point of view.... Aug 17, 2023 at 5:25
  • Issue opened Aug 17, 2023 at 5:32

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