Undelivered Messages

If there is a problem with text message delivery, Cadence will display an alert indicating that a delivery issue has occurred:

Clicking on Not delivered will show details on the delivery issue. Typically, delivery issues are related to invalid/disconnected mobile numbers or a landline number listed as a mobile number on a contact's record. 

Note: To reduce and avoid the occurrence of delivery errors, you can enable the Phone Number Validation service (if not already enabled).


Here is a list of possible issues that could cause delivery problems:

Code Error Message
21211 The phone number is not a valid mobile number.
21217 The phone number is not a valid mobile number.
21408 This message could not be delivered, as the region this mobile belongs to has not been enabled. Please contact support@mongooseresearch.com.
21610 The recipient's number cannot receive messages because it is on an opt out list at our SMS gateway.
21614 The phone number is not a valid mobile number.
30001 Unable to deliver message due to an undetermined issue. Please contact support@mongooseresearch.com.
30002 Unable to deliver message due to an undetermined issue. Please contact support@mongooseresearch.com.
30003 The recipient could not be reached. The mobile handset may be in a poor coverage area or without access to the network.
30004 The recipient's number is blocked from receiving messages and may be blacklisted.
30005 The recipient's number does not exist.
30006 The recipient's number is a landline or is associated with an unknown carrier.
30007 The recipient's carrier has filtered your message due to a carrier violation. Please contact support@mongooseresearch.com for more information.
30008 The message could not be delivered due to an error. The receiving number may be a landline or associated with an unknown carrier. If sending an image, please ensure the file type is correct.
30009 Please contact support.    
Did this answer your question? Thanks for the feedback There was a problem submitting your feedback. Please try again later.