Error Code and Warning Dictionary
26 articles
- 21211: Invalid 'To' Phone NumberError 21211 occurs when an outbound call or message is sent to a phone number that is invalid, incomplete, or incorrectly formatted. The destination number must use E.164 format, which includes a plus sign, country code, and full subscriber number. TABLE OF CONTENTS - What Is Error 21211? - Key Bene
- 21408: Your account is not allowed to send SMS to this country or region.Error 21408 occurs when you attempt to send an SMS or MMS to a country or region that is not enabled or supported for messaging. These regional controls help prevent messages from being sent to destinations your account is not configured to use and can also help avoid unexpected international messag
- 21614: 'To' number is not a valid mobile numberError 21614 occurs when you attempt to send an SMS to a destination number that is not recognized as a valid mobile number. In many cases, the number is a landline, is formatted incorrectly, or uses an unsupported non-standard number format. TABLE OF CONTENTS - What Is Error 21614? - Key Benefits of
- 21635: The "To" number is a landline and cannot receive SMS.Error 21635 occurs when you attempt to send an SMS message to a phone number that is identified as a landline. Standard SMS delivery requires a mobile-capable destination number. What Is Error 21635? Error 21635 means the destination number in the To field is a landline and cannot receive SMS thro
- Fix "From Number Not SMS Capable" ErrorSMS & Messaging Fix "From Number Not SMS Capable" Error Resolve SMS sending errors when your phone number lacks texting capabilities and restore messaging functionality. What You'll Learn This article explains why you might encounter the "from number is not SMS capable" error when sending text mes
- 30002: Message failed: your account is currently suspendedError 30002 occurs when a message was queued successfully, but the account was suspended before the message could be sent. The message is not delivered until the underlying account issue is resolved. TABLE OF CONTENTS - What Is Error 30002? - Key Benefits of Resolving Account Suspension Quickly - C
- 30003: Number unreachable or out of service.Error 30003 occurs when an SMS cannot be delivered because the destination device is powered off, unreachable, unable to receive SMS, or temporarily unavailable through the recipient’s mobile carrier. TABLE OF CONTENTS - What Is Error 30003? - Key Benefits of Troubleshooting Error 30003 - Common Cau
- 30004: Recipient has opted out or has DND enabled.Error 30004 occurs when a message cannot be delivered because the destination number is blocked, unavailable, unable to receive SMS, restricted by local regulations, or has previously opted out of messaging. TABLE OF CONTENTS - What Is Error 30004? - Key Benefits of Troubleshooting Error 30004 - Com
- 30005: The recipient’s number is inactive or does not existError 30005 occurs when an SMS cannot be delivered because the destination number is unknown, inactive, unreachable, or otherwise unable to receive messages. In some cases, the issue may also be related to the recipient’s device or mobile carrier. TABLE OF CONTENTS - What Is Error 30005? - Key Benef
- 30006: Landline or unreachable carrierError 30006 occurs when an SMS cannot be delivered because the destination number is unable to receive the message. This most commonly happens when the number is a landline or when the destination carrier cannot be reached for that number type. TABLE OF CONTENTS - What Is Error 30006? - Key Benefits
- 30007: Message filteredERROR: 30007 Description Your message was filtered (blocked) by Lead Connector or by the carrier. This may be done for violating Lead Connector Messaging Policy, or by a wireless carrier for violating carrier rules or regulations. Examples of messaging that would be blocked by LeadConnector are s
- 30008: Unknown errorError 30008 occurs when a message fails to reach the recipient, but the carrier does not provide a specific reason for the failure. Because the returned carrier response is generic, additional troubleshooting is required to determine whether the issue is related to message length, character encoding
- 30011: MMS not supported by the receiving phone number in this regionError 30011 occurs when an MMS cannot be delivered or received because MMS is not supported for the destination number, device, or region. The exact cause depends on whether the message was inbound or outbound. TABLE OF CONTENTS - What Is Error 30011? - Key Benefits of Understanding Error 30011 - Co
- 30023: Daily Message Cap ReachedError 30023 occurs when the daily messaging limit for your registered Brand has been reached. Once this limit is reached, additional messages to certain carrier networks may fail until the daily limit resets or the underlying messaging limit is reviewed. TABLE OF CONTENTS - What Is Error 30023? - Ke
- 30032: Toll-Free Number Has Not Been VerifiedError 30032 occurs when a message is sent from a toll-free number to a recipient in the United States or Canada, but the sending number has not completed the required toll-free verification process. TABLE OF CONTENTS - What Is Error 30032? - Key Benefits of Toll-Free Verification - Common Causes of
- 21610: Attempt to send to unsubscribed recipientError 21610 occurs when you try to send a message to a recipient who has opted out of receiving messages or has Do Not Disturb settings enabled. Messaging remains blocked until the recipient properly opts back in. TABLE OF CONTENTS - What Is Error 21610? - Key Benefits of Respecting Opt-Out Status -
- 30033: US A2P 10DLC - Campaign SuspendedError 30033 occurs when a message is sent from a U.S. A2P 10DLC campaign that has been suspended. While the campaign remains suspended, messages associated with that campaign cannot be delivered. TABLE OF CONTENTS - What Is Error 30033? - Key Benefits of Resolving Campaign Suspension - Common Cause
- 30037: Outbound Messaging DisabledError 30037 occurs when outbound messaging has been disabled for the account. Messages cannot be sent until the sending restriction is removed. TABLE OF CONTENTS - What Is Error 30037? - Key Benefits of Identifying an Account-Level Restriction - Common Cause of Error 30037 - How to Fix Error 30037 -
- 21612: Message cannot be sent with the current combination of "To" and/or "From" parametersERROR: 21612 Description Message cannot be sent with the current combination of "To" and/or "From" parameters. Possible Causes Number formatting: The format you used for the "To" or "From" number may not be formatted using the E.164 format. LeadConnector standardises numbers using the E.164 form
- Error 30034: Linking a Phone Number to Approved A2P CampaignAfter your A2P brand and campaign are approved, each applicable phone number must be associated with the approved campaign before it can use the registered messaging route. Linking the number helps ensure compliant SMS and MMS delivery through a 10-digit local number. This process is also useful whe
- 21606: The 'From' phone number provided is not a valid message-capable phone number for this destination/accountSMS messages can only be sent from a phone number or supported sender that is active, available in your account, and capable of sending SMS. If the selected sender is unavailable, incorrectly formatted, still being transferred, or does not support SMS, the message may fail. TABLE OF CONTENTS - What
- 30035: Number not fully registered for A2P messaging. Please wait up to 24 hours after approval.Error 30035 occurs when you try to send SMS from a newly registered U.S. A2P 10DLC number before carrier-level provisioning has fully completed. Even if the Brand and campaign are approved, the number may still need additional time before messaging is active across carrier networks. TABLE OF CONTENT
- How to Prevent SMS Filtering by Carriers: Error 30007Carrier filtering (Error 30007) occurs when messages are blocked because they appear to be unwanted, spammy, or non-compliant with carrier or legal policies. This article will help you understand what message filtering is, how to avoid it, and what you can do if you're affected. TABLE OF CONTENTS -
- How to Fix Error 21612: Messaging Route Not SupportedError 21612 occurs when the sending number and destination country are not compatible for messaging. This usually means the selected sender cannot be used to send messages to that destination and a different number or route is required. TABLE OF CONTENTS - What Is Error 21612? - Key Benefits of Unde
- 20003 - Credentials are invalid or the account has been suspendedError 20003 occurs when a request cannot be authenticated because the connected account credentials are invalid, expired, or no longer active. It can also appear when the connected account has been suspended or deactivated. TABLE OF CONTENTS - What Is Error 20003? - Key Benefits of Resolving Authent
- Custom Module Visibility by Role & LocationCustom Module Links in the App Customizer give you advanced control over who can see specific navigation links and where they appear. By combining role-based visibility with location targeting, you can create a cleaner, more relevant user experience while limiting access to sensitive resources. TABL