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SMS not populating in MailChimp

  • June 11, 2025
  • 9 replies
  • 67 views

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I have created a Zap that pulls data/text from a Google Email and formats (if needed) to update a MailChimp contact. However, for some reason the SMS field won’t populate. I have reformatted the number so that it is a “E.164 format.” Everything outside of SMS populates correctly or as intended. What am I doing wrong?

 

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9 replies

Troy Tessalone
Zapier Orchestrator & Solution Partner
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  • Zapier Orchestrator & Solution Partner
  • 34072 replies
  • June 11, 2025

Hi ​@ashland 

Click the underlined field label “SMS Phone Number” to see a tooltip with more info that may provide guidance.

 


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  • Author
  • Beginner
  • 21 replies
  • June 11, 2025

Hello. Yes, I understand. It states “This is merge field "SMSPHONE" in your MailChimp audience's setup.” However, that field is not populating and I am trying to figure out “why” because the number has been changed to be the E.164 format. Any insight?


Troy Tessalone
Zapier Orchestrator & Solution Partner
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  • Zapier Orchestrator & Solution Partner
  • 34072 replies
  • June 11, 2025

@ashland 

How is the SMS Phone Number field configured in Mailchimp? (Why field type?) [screenshots]

Check double opt-in settings: https://mailchimp.com/help/about-double-opt-in/

Help links form Mailchimp about using SMS Marketing: https://mailchimp.com/help/create-send-marketing-sms/

 

 

 


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  • Author
  • Beginner
  • 21 replies
  • June 12, 2025

Yes, I have seen those articles. I have reached out to MailChimp on this and they have explained Zapier doesn’t have this functionality: 

 

Is this in Zapier’s roadmap?


Troy Tessalone
Zapier Orchestrator & Solution Partner
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  • Zapier Orchestrator & Solution Partner
  • 34072 replies
  • June 12, 2025

@ashland 

You can try opening a ticket with Zapier Support to submit a feature request to be logged: https://zapier.com/app/get-help

 

You may have to try using the Mailchimp API via one of these options: 

  • Mailchimp - API Request
  • Mailchimp - Custom Action

Mailchimp API: https://mailchimp.com/developer/marketing/api/ecommerce-customers/add-or-update-customer/

 

NOTE: Most Zap app integrations are created and managed by the app developer using the Zapier Developer Platform.

 

 


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  • Author
  • Beginner
  • 21 replies
  • June 12, 2025

But MailChimp has stated it in its message above that SMS Numbers won’t come through an API connection with Zapier so not sure what the APIs above would do?

 

I think the APIs listed above would work with approved providers, but as MailChimp has stated that isn’t Zapier.

 

Or am I missing something?


Troy Tessalone
Zapier Orchestrator & Solution Partner
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  • Zapier Orchestrator & Solution Partner
  • 34072 replies
  • June 12, 2025

@ashland 

Then it looks like you will have to do it manually.


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  • Author
  • Beginner
  • 21 replies
  • June 12, 2025

Ok - thanks for confirming.


JammerS
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  • Zapier Staff
  • 3527 replies
  • June 13, 2025

Hi ​@ashland,

 

Just keep us posted on this so we can assist you further if needed. Thank you.