If you use Two-Way Texting, text messages may sometimes fail to be delivered to your customers. You can see which text messages failed and the reasons why they failed on the Undelivered Notifications report and the Tenant Notifications page.
Undelivered Notifications report
You can view all failed text messages by clicking Reports and then Undelivered Notifications.
The Status column will say Undelivered if a text message failed. The Reason column will show an error message with the reason why the message failed.
See the Common Errors section below for details about common errors.
Tenant Notifications page
You can view failed text messages for a particular customer by navigating to their customer profile. At the bottom of the profile page, click Notifications. The Status column will say Failed if the message was not delivered successfully. Click Failed to view the reason the message failed.
You will see Undelivered followed by an error message with the reason why the message failed. See the next section for details about common errors.
Common error messages
Many errors are related to SMS registration (A2P 10DLC). If you send text messages from your Easy Storage Solutions software, you must register your business brand/s and phone numbers to prevent your messages from being blocked by mobile carriers. Messages will not be delivered until you are successfully registered.
| Error message | Explanation and resolution |
| US A2P 10DLC - Rate Limits Exceeded | You are sending messages at a higher rate than is allowed by carriers or you might be sending too many messages to the same phone number in a short time frame. Slow down your rate of sending messages. You may want to consider prioritizing certain messages, such as transactional messages, over marketing messages. |
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US A2P 10DLC - Daily Message Cap Reached |
You have sent the maximum number of messages for the day. Wait until the next calendar day to resume sending messages. The day resets at 00:00 Pacific Time (US). Pacific time is affected by Daylight Savings Time and Standard Time switches. |
| Numeric Sender ID Not Provisioned on Carrier | If you are sending the message to a customer in the U.S., please ensure you’ve completed registration. Sending text messages to customers in other countries that require different registration is currently unavailable. |
| US A2P 10DLC - T-Mobile Daily Message Limit Reached | You have reached your daily limit for messages sent to T-Mobile users. Wait until the next calendar day to resume message sending. The day resets at 00:00 Pacific Time (US). Pacific time is affected by Daylight Savings Time and Standard Time switches. |
| US A2P 10DLC - Campaign Suspended | Your brand registration campaign has been suspended. Please reach out to our Support team for more details about why your campaign has been suspended and how to resolve the issue. |
| US A2P 10DLC - Message from an unregistered number | The phone number you used to send the message has not been registered. Register your phone number/s using our registration portal. |
| US A2P 10DLC - Message from a number still being configured | Your registration request is not complete. Registration can take up to 4 weeks to be approved. You can view your registration status in our registration portal. Once registration is approved, you will be able to send messages. |
| Message delivery blocked | The number you are sending the message to is temporarily blocked from receiving messages. You do not need to take any action. The block should be resolved in 15-30 minutes. |
| Campaign vetting rejection - Unknown Error | There is an issue with your Brand Registration application. Please contact our support team for investigation into the error. |
| Brand Registration SID for US A2P Campaign Use Case is Not Registered or Not Valid | There is an issue with your Brand Registration application. Please contact our support team for investigation into the error. |
| Incompatible Messaging Service/A2P Use Cases | There is an issue with your Brand Registration application. Please contact our support team for investigation into the error. |
| A2P Use Case is Invalid | There is an issue with your Brand Registration application. Please contact our support team for investigation into the error. |
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Cannot import Campaign Verify token due to incompatible A2P brand |
There is an issue with your Brand Registration application. Please contact our support team for investigation into the error. |
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Attempt to send to unsubscribed recipient |
The tenant has replied STOP and is not subscribed to receiving SMS communications. |
| Unreachable Destination Handset |
The message failed due to an unavailable or unreachable destination. This typically happens when a user is outside of cellular service or their mobile device is powered off.
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