Hey @onors! Let’s see if we can sort this out.

1. Is your signup form a Klaviyo form? Can you double check for me which list your signup form is sending subscribers to?
2. Can you triple check that list is set to single opt-in?
3. Can you confirm what kind of number you’re using and from which country you’re based?
4. What country did your missing subscriber sign up from?
5. A profile should have been created regardless if they successfully signed up for SMS or not. Can you search for them and find the event log?

It sounds like you're encountering a frustrating issue with your SMS subscribe page. Here are some steps to troubleshoot the problem:

1. Double-Check Integration Settings: Ensure that your SMS platform (e.g., Klaviyo, Twilio, etc.) is properly integrated with your list. Verify that the API keys and settings are correct.
2. Form Configuration: Review the settings of your subscribe form:
   • Make sure the form is linked to the correct list.
   • Check that the SMS consent checkbox is properly configured and that it's required for submission.
3. Check for Errors: Inspect the browser's console for any JavaScript errors that may occur when submitting the form. These errors could prevent the submission from completing.
4. Review Subscription Rules: Since you have single opt-in set up, ensure that there aren’t any additional filters or rules preventing new leads from being added to your list.
5. Look for Submissions: Check the platform's dashboard to see if submissions are being recorded but not appearing in the list. Sometimes they may be saved in a different area, like a separate "leads" or "pending" section.
6. Test with Different Numbers: Try subscribing with different phone numbers to see if the issue persists across all entries or if it’s isolated to specific numbers.
7. Contact Support: If you’ve checked all of the above and are still experiencing issues, reach out to your SMS provider’s support team for assistance. They can often provide insights into whether the problem lies within the integration or the platform itself.

Here are some additional troubleshooting steps for your SMS subscribe page issue:

1. Form Submission Logic: Verify that the form's submission logic is correctly set up. Sometimes, forms may not be properly configured to save data. Make sure the action URL points to the right endpoint for processing subscriptions.
2. SMS Provider Settings: Check the settings within your SMS provider's dashboard. Ensure that the list or group where you want the leads to be added is correctly configured and that there are no restrictions preventing new entries.
3. Validation Errors: If there are any fields in the form that are incorrectly filled out (e.g., invalid phone numbers), it may prevent the form from submitting. Ensure there are no hidden validation errors that could be causing the form to fail.
4. Consent Mechanism: Since you're using SMS consent, ensure that the consent checkbox is correctly linked to the subscription logic. If it’s not checked, the submission may not process correctly.
5. Browser and Device Testing: Test the subscribe form on different browsers and devices to see if the problem is consistent. Sometimes, issues can arise due to browser compatibility.
6. Check for Redirects: After submission, ensure that the form isn't redirecting to a page that doesn’t confirm the subscription. This might make it seem like leads are getting lost.
7. Logs and Analytics: If your platform provides logs or analytics for form submissions, check those to see if the submissions are being received but not recorded correctly in your list.
8. Try a Test Form: Create a simple test form with minimal fields to see if the problem persists. This can help isolate whether the issue is with the form configuration or a broader integration issue.

Here are some more steps you can take to troubleshoot the SMS subscribe page issue:

1. Check Spam Filters: Sometimes, new leads might be flagged by spam filters. Ensure that the phone numbers aren’t being blocked or marked as spam in your SMS platform.
2. Review Form Fields: Ensure all required fields are correctly set up. Sometimes a missing or incorrectly formatted field can prevent the submission from going through.
3. Integration Logs: If your SMS provider has an integration log or activity feed, check it for any error messages or indications of failed submissions. This can provide clues about what’s going wrong.
4. Test Notifications: Set up a notification for each successful subscription to confirm they’re being received. This can help determine if the issue is with the form or with how leads are processed afterward.
5. Look for Rate Limiting: Some SMS services have rate limits that may restrict how many subscriptions can be processed in a short time. Check if you’re hitting any limits that might cause new leads to be dropped.
6. Fallback Mechanism: Implement a fallback mechanism that sends an email notification or logs the number if the SMS subscription fails. This can help capture leads even if the SMS fails.
7. Consult Documentation: Review your SMS provider's documentation for any specific requirements or settings related to subscribing via forms. There may be nuances that need to be addressed.
8. A/B Testing: If feasible, create variations of your subscribe form to see if a different configuration yields better results. This could help identify the specific element causing the issue.