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    • Home
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    • Candidate unsubscribe and resubscribe

    Hard unsubscribe (SMS)

    Written by Lindsey Stanifer

    Updated at August 19th, 2026

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    Table of Contents

    Opt-out keywords Candidate/user experience Additional candidate logic Hard resubscribe logic

    Hard unsubscribes are when candidates or employees use opt out language recognized at a carrier level. Paradox has no control over this unsubscribe method, as it is stored with Twilio and carriers. The phone number used for sending the message to the candidate/employee and that was sent the hard unsubscribe keyword can no longer send SMS or WhatsApp messages to the candidate. 

    Candidates and employees can still resubscribe at a later time.


    Opt-out keywords

    The following words can be used for hard unsubscribing to Paradox communications:

    Subscription Type Paradox Keywords
    Opt-out
    • stop
    • stopall
    • unsubscribe
    • end
    • quit

    Candidate/user experience

    Below are steps that define when an individual hard unsubscribes via SMS/WhatsApp.

    1. An indvidual sends a Twilio opt-out keyword (STOP, STOPALL, UNSUBSCRIBE, END, or QUIT) to one of your company's phone numbers used for communications.
    2. Your AI Assistant will send a hardcoded opt-out message:
      • SMS: “You are unsubscribed from #messaging-brand-name. No more messages will be sent. Reply HELP for help or smshelp@paradox.ai.”
      • WhatsApp: “You are unsubscribed from #messaging-brand-name. No more messages will be sent. Reply HELP for help or smshelp@paradox.ai.”

    The individual's phone number is now unsubscribed from all SMS/WhatsApp coming from the phone number they sent the keyword to. No further messages from the phone number will reach this person.

    Additional candidate logic

    Along with the above changes, the following will take place for candidates specifically:

    • All candidates and applications using the unsubscribed phone number will have their phone number marked as unsubscribed and greyed-out in their profile's Candidate Summary.
    • All candidate conversations and applications using the same candidate phone number will have an unsubscribed milestone within their conversation, even if they are under different candidate names/profiles (different candidate IDs).
    • If the candidate’s only method of communication was SMS, they will be moved to the Unsubscribed folder.
    • If the candidate also has an email on file, they will not be moved to the Unsubscribed folder.

    Hard resubscribe logic

    Learn how candidates can hard resubscribe here.

    conversational ats integrated ats carrier unsubscribe network unsubscribe

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    Related Articles

    • Candidate unsubscribing/resubscribing via web widget
    • Unsubscribed visibility
    • Soft unsubscribe (SMS)
    • Outbound phone numbers

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