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Troubleshooting: Why are my SMS texts not delivered?
Troubleshooting: Why are my SMS texts not delivered?

Learn about common delivery errors for SMS messages and troubleshooting tips

Lindsey Gagnon avatar
Written by Lindsey Gagnon
Updated this week

There can be several reasons why your SMS messages might not be successfully delivered through Waitwhile. Below are common issues and troubleshooting steps to ensure smooth delivery

SMS delivery issues

To see why a text failed, you will need to click on the visit with the failed messages and then open the Messages/Chat section of the customer information panel.

Next, click the red Failed to send SMS link that is displayed next to the failed message. This will open up a Message details box that will provide additional information about the failed message including a brief description.

Image highlighting message details and the error message provided at the top of the panel

Here are a some common errors that you may see in the Message details box:

  1. Blocked by Waitwhile

    • This error simply means that the content of your message has been flagged by Waitwhile and will require our support team to remove the block. Please follow our best practice guidelines to reduce the risk of getting messages blocked or filtered by Waitwhile or our SMS provider.

  2. Carrier Violation or Unknown Error

    • This error means that cellphone carriers have blocked your messages. Please contact our support team so they can troubleshoot in collaboration with Twilio, our SMS provider.

  3. Unreachable Destination Handset

    • This error means that your guest entered a phone that is not in service or turned off. Please advise your guests to make sure that their devices are reachable.

  4. Landline or unreachable carrier

    • This error means that your guest entered a landline phone number or the carrier is no longer reachable. Please advise your guests to make sure that their devices are reachable.

Message credit issues

You may receive a failed message alert if you have exceeded your Message Credits. This is easily identified with a banner at the top of your Waitwhile dashboard. Note: This message can be dismissed easily, but will reappear the next time you login.

Reporting SMS issues to Waitwhile support

In the event that a large amount of SMS are failing unexpectedly with the same error message, or the error message displayed seems incorrect, please reach out to Waitwhile support via chat or by emailing support@waitwhile.com.

Please include the following when reporting an SMS issue:

  • The message IDs (or screenshots of the Message details box) for a few of the failed messages

  • Customer Name & phone number for a few of the failed messages

  • Location Name (or ID found under your user Avatar > About)

This information will allow us to reduce the additional questions we need to ask your staff and we can properly reach out directly to our SMS provider for a resolution.


To get help. get in touch with our Support team via chat or by emailing support@waitwhile.com.


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