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Klaviyo Database Defaulting to German Numbers – Need Assistance


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We are facing a data sync issue between Webflow and Klaviyo, where international clients' phone numbers are not being stored correctly. Despite submitting the correct country dial code and phone number, Klaviyo's database defaults the numbers to a German country code. This issue is affecting our contact form integration, and we need assistance in identifying and resolving the problem. You can check the issue on our website: https://www.h-btechnics.com/en/product-catalog. We can also provide console data for further troubleshooting.

Correct Dial code (Blue) but added +49 automatically somehow, In console ”https://prnt.sc/9oS8dsBdBsl-” also getting proper Data.Form submitted-default email by webflow with the correct data fetched “https://prnt.sc/II5-zfOb20Tj”,but in the klviyo - wrong dial by default taking +49 DE.”https://prnt.sc/454_TVsYoXjZ”.
*link are Screenshot 

 

Best answer by Mich expert

Dear ​@hbtechnics ,

I understand the issue you're facing with Klaviyo defaulting phone numbers to +49. Here’s a quick solution to troubleshoot and fix this:

  1. Check Webflow Form Settings – Ensure the country code dropdown is properly mapping to the phone number field before submission.
  2. Review Klaviyo Integration – Sometimes, Klaviyo auto-formats numbers based on the account's default location. Try adjusting your Klaviyo settings under Profiles > Contact Information.
  3. Use Custom JavaScript – Implement a script to override the default country code before the data syncs to Klaviyo.
  4. Test API Mapping – If Webflow is passing data via API/Zapier, ensure it’s correctly formatted before reaching Klaviyo.

If needed, I can guide you through the exact steps or check your console data for deeper troubleshooting. Let me know how you’d like to proceed.

Best,

Mic

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2 replies

Byrne C
Community Manager
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  • Community Manager
  • 56 replies
  • January 31, 2025

Hi ​@hbtechnics

I just filled out the form on your website, and I noticed that the Telefonnummer field defaults to a Germany icon that attaches the +49 country code to the number. 

 

Do you notice this issue continuing to happen even when a person chooses a different country from the dropdown before submitting the form?

Best,

-Byrne


Mich expert
Problem Solver IV
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  • Problem Solver IV
  • 64 replies
  • Answer
  • January 31, 2025

Dear ​@hbtechnics ,

I understand the issue you're facing with Klaviyo defaulting phone numbers to +49. Here’s a quick solution to troubleshoot and fix this:

  1. Check Webflow Form Settings – Ensure the country code dropdown is properly mapping to the phone number field before submission.
  2. Review Klaviyo Integration – Sometimes, Klaviyo auto-formats numbers based on the account's default location. Try adjusting your Klaviyo settings under Profiles > Contact Information.
  3. Use Custom JavaScript – Implement a script to override the default country code before the data syncs to Klaviyo.
  4. Test API Mapping – If Webflow is passing data via API/Zapier, ensure it’s correctly formatted before reaching Klaviyo.

If needed, I can guide you through the exact steps or check your console data for deeper troubleshooting. Let me know how you’d like to proceed.

Best,

Mic