How to Trigger a Workflow Only Once Per User in Contlo Automation?

Hi everyone,

I'm currently building a customer onboarding flow using Contlo's automation workflows, and I have a question about limiting triggers.

I want to send a welcome email to new users only once, right after they sign up. However, I'm noticing that the workflow re-triggers if the same user signs up again or updates their profile. I only want the workflow to trigger once per user, not every time the event is fired.

Does Contlo support a way to limit a trigger to just once per unique user? Maybe through event deduplication, user ID filtering, or some sort of condition block?

Appreciate any guidance or best practices from folks who’ve implemented similar workflows. Thanks in advance!

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