If you have 2 or more conversions you can combine them into a single conversion. In this case every time one of your simple conversions is triggered, your combined conversion will be triggered as well.
To create a simple conversion navigate to the Conversions page, click + ADD, and select Combined conversion.

Conversions deduplication

Enabling deduplication will filter out conversions that happened by users with the same Google Client ID within a set day window.
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