Updated on 2026-04-09 GMT+08:00
FAQs
Product Specifications
- How Do I Enable the Message & SMS Service?
- What Are the Differences Between Pay-per-Use Billing upon SMS Package Runout (Mode 1) and Suspension upon Resource Package Runout (Mode 2)?
- In Which Countries and Regions Is the Message & SMS Service Available?
- Which Countries and Regions Can International SMSs Be Sent to?
- How Many Characters Can an SMS Contain?
- Is MMS Supported?
- What Languages Are Supported?
- What Protocols Does the Message & SMS Service Support?
- What Is the Recommended Number of Concurrent SMSs per Second on the Message & SMS Platform?
- What Are the SMS Arrival Rate and Delay of the Message & SMS Platform?
- Which Number Segments Does the Message & SMS Service Support?
- Which Websites and Regions Support the Message & SMS Service?
- Do SMS Backend Services Support Multi-AZ Redundancy?
- Does the Message & SMS Service Support Display of Company Names and Logos?
- Is the Message & SMS Service a SaaS Service?
- Is the Message & SMS Service a Global-level or Project-level Service?
- Will I Be Billed for the Message & SMS Service If I No Longer Use it?
- Which Number Segments Does Message & SMS Support?
Qualifications
- How Do I Submit a Qualification on the Console?
- What Materials Need to Be Uploaded for a Qualification?
- How Do I Set the Qualification Name?
- How Do I Fill in the Qualification Administrator Information?
- How Do I Select the Qualification Application Purpose?
- What Do I Do If There Are Multiple Signatures?
- Can One SMS Signature Be Used in Multiple SMS Templates?
- Can I Use APIs to Submit Qualifications?
- Can I Provide the ID Card of the Same Authorized Representative for Multiple Signatures Belong to Different Entities with Equity Relationships?
- Do the Qualification Materials Need to Be Stamped with the Official Seal?
- Can a Company Submits Multiple Qualifications?
- Why Do I Need to Submit a Qualification for Using Message & SMS After I Have Authenticated a Huawei Cloud Account?
- Why Do I Need to Provide the Qualification Information Again When Applying for a Signature?
- How Do I Associate Qualification Information with a Signature?
- Why Can't I Associate a Signature with an Approved Qualification?
- What Can I Do If an Error Is Reported or a Message Is Displayed Indicating that the System Is Busy When I Submit a Qualification on the Console?
- Why Does the Signature Remain in the "Processing completed (under qualification review)" Status After the Qualification Is Approved and the Signature Is Associated?
- Why Does My Approved Signature Changes to the "Processing completed (real name registration in progress)" Status After Activation?
- After Changing the Company Associated With My Huawei Cloud Account, Do I Need To Resubmit My Qualifications?
Signatures
- Signature Rules
- How Long Does It Take to Review a Signature?
- How Do I Modify an SMS Signature?
- How Do I Delete an SMS Signature?
- Can SMS Signatures Have the Same Name But Different Types?
- Can a User Apply for Multiple SMS Signatures?
- Can One SMS Signature Be Used in Multiple SMS Templates?
- Can I Create Duplicate SMS Signatures Under the Same or Different Applications?
- Why Is an SMS Signature in Deactivated State? How Do I Activate a Signature?
- What Do I Do If the Enterprise for Which a Signature to Be Applied for Differs from the Enterprise Authenticated Using Real Name?
- Can I Apply for an SMS Signature Without a Business License?
- Can the Signature Name Be Placed at the End of an SMS Message?
- Can I Modify the Power of Attorney When Applying for a Signature?
- Can I Select Multiple Signature Formats When Applying for a Signature?
Templates
- Template and Variable Specifications
- How Long Does It Take to Review a Template?
- How Do I Delete an SMS Template?
- How Do I Use a General SMS Template? (Chinese Mainland SMS)
- How Can I View the Content and Related Information of an SMS Template?
- Can I Set the Text Format (Such as Underline and Font Color) in an SMS Message Template?
- What Can I Do If an SMS Template Is Approved and Deactivated?
- Do SMS Templates Support Links?
- How Do I Configure Variables in an SMS Template?
- Is There a Limit on the Number of SMS Templates and Use Times?
Applications
- How Do I Change the SMS Application Name?
- How Do I Modify the Uplink SMS Destination? (Chinese Mainland SMS)
- Can I Delete an SMS Application?
- How Do I Create Multiple SMS Applications?
- What Is the Uplink SMS Destination? Does It Have to Be a Website? (Chinese Mainland SMS)
- Can the SMS Platform Send Uplink SMS Messages to Corresponding Destination Addresses in Different Applications? Is Sending Uplink SMS Messages Charged? (Chinese Mainland SMS)
- Can International SMS and Chinese Mainland SMS Share the Same SMS Application and Template?
- How Do I Distinguish SMS Applications Created Using Different IAM Accounts?
- How Do I Send Different Types of SMSs? (Chinese Mainland SMS)
- What Are the Functions of SMS Applications?
Verification
Secondary Development
- How Do I Obtain the Application Access Key from the Message & SMS Platform?
- How Do I Obtain the HTTPS Commissioning Certificate from the Message & SMS Platform?
- How Can I Get the Channel No. Required to Send a Short Message?
- Does SMS API Calling Have PHP and Java Version Requirements?
- Why a Preset 6-Digit Verification Code Becomes a 5-Digit Verification Code After Being Sent?
- What Is the Callback Address? How Do I Set This Address?
- Does the Message & SMS Service Support Privatized Deployment?
- Can the SMS API Be Called by an Internal Network (For Example, an ECS Server)?
- Why Can an SMS Sending Request to an Incorrect Recipient Number Be Successful?
- Must the Message & SMS API Request Address Be a Domain Name? Does the Service Provide a Fixed IP Address?
- Does Message & SMS Provide SDKs?
- Is the Message & SMS Service Affected If the Region Where the Service Is Enabled Is Different from the Region Where Servers Are Located?
SMS Sending
- How Do I Send Group SMSs?
- How Do I Determine Whether an SMS Was Sent Successfully
- How Do I Improve the SMS Success Rate?
- Can I Cancel the Sending of an SMS?
- Is the SMS Sending Time Restricted? (Chinese Mainland SMS)
- What Numbers Are Presented to SMS Recipients?
- What is the Function of SMS Channel Numbers?
- Does the Message & SMS Platform Send an SMS Only Once to Duplicate Numbers?
- How Do I Export Failed Numbers in Batches When I Use the Group SMS Assistant?
- Will SMSs Fail to Be Sent Using the Group SMS Assistant If the User Is in Arrears?
- Can I View the Content of a Successful or Failed SMS?
- Can I Use an SMS to Send a Dynamic Short Link?
- How Can I View SMS Sending Tasks and Details?
- Can I Export SMS Send Details?
- How Do I Wrap Text When Sending an SMS?
- Why Can I Send an SMS When My Account Balance Is Zero?
- Can I Limit the Quota of SMS Messages That Can Be Sent by an Application or a Signature?
- How Do I View the Cause of an SMS Sending Failure?
Packages and Fee
- Is a Failed SMS Billed?
- How Much Does the Message&SMS Service Need to Be Pre-paid?
- Can I Have Free Trial or Free Tier of the SMS Service?
- Will Message & SMS Resources Be Released If an Account Is in Arrears?
- How Can I View the SMS Fees?
- How Does China Broadnet Charge for SMSs? (Chinese Mainland SMS)
- Can I Unsubscribe from an SMS Package?
- Can Unused Quotas Be Refunded?
- Can I Modify the SMS Package Specifications?
- How Can I View the Remaining Quota of the SMS Package?
- Can an SMS Package Be Used by Different Accounts?
- Can I Use an SMS Package Across Regions?
- How Long Is the Validity Period of an SMS Package? Can I Modify It?
- Can I Renew or Repeatedly Purchase SMS Packages?
- Can an International SMS Package Be Used to Cover the Chinese Mainland SMS Fees?
- How Do I Purchase a Chinese Mainland SMS Package?
- Can I Set a Quota Usage Alert for an SMS Package?
- Can I Use a Huawei Cloud SMS Package in a Third-Party Cloud?
- Why Am I Billed on a Pay-per-Use Basis After I Purchased an SMS Package?
- How Is the Group SMS Assistant Charged?
Troubleshooting
- What Do I Do If an Error Occurs When I Enable the Message & SMS Service?
- Why Is the Signature Review Rejected? (Chinese Mainland SMS)
- What Do I Do If an Error Is Reported When I Upload a Business License During Signature Adding? (Chinese Mainland SMS)
- Template Rejection Reasons and Handling Suggestions
- Why More than One Segment Is Displayed in Template Details?
- Why Is My SMS Application Paused? How Can I Recover It to the Normal State?
- What Do I Do If Message & SMS API Calling Times Out?
- What Do I Do If an SSL Connection Error Occurs During API Calling?
- How Do I Do If the Test Mobile Number Cannot Receive SMSs Because the Sending Frequency Reaches the Upper Limit During SMS API Test?
- Why Does a Phone Not Receive an SMS After an API Is Called?
- What Do I Do If an Exception Occurs When I Access the Message & SMS Console?
- What Can I Do If the Error "Failed to retrieve reminders." Is Displayed on the Console?
- What Do I Do If the Console Displays a Message Indicating that Basic Tenant Information Fails to Be Queried?
- Why Does IAM Permissions Granted to a Message & SMS Member Account Fail to Take Effect?
- What Do I Do If an International SMS Failed to Be Sent?
- Why Does an SMS Fail to Be Sent?
- Why Some Numbers Cannot Receive SMSs?
- Why Send Result Is Displayed as Sending or the SMS Is Received After a Long Time?
- Why Is a Link in an SMS Displayed as Text?
- Why Is the SMS Quantity on the Console Two Times of the Recipient Number Quantity?
- What Do I Do If "The recipient number quantity is out the range of 1–50000." Is Displayed After Uploading a Number File?
- Why an SMS Signature and an SMS Template Cannot Be Selected in the Group SMS Assistant?
- Why Is the Status Code of an SMS REJECTD?
- What Do I Do If an SMS Is Intercepted by the Phone Security Manager as a Junk Message?
- Why Is a Recipient Blacklisted After Replying "T"? How Do I Remove the Recipient from the Blacklist?
- Why Is a Received SMS Displayed as Garbled Characters?
- What Do I Do If an SMS Fails to Be Sent and Error Code E200028 Is Reported?
- What Do I Do If the Message "Could Not Derive Key" Is Displayed When I Commission the SMS Sending Function?
Others
- What Are the Rules for SMS Barring?
- Is the Downlink SMS ID the Same as the Uplink SMS ID? (Chinese Mainland SMS)
- How Can I Associate a Downlink SMS with an Uplink SMS? (Chinese Mainland SMS)
- Can Message & SMS Resources Be Transferred Across Accounts?
- Can I Use the Message & SMS Service in Other Cloud Services (Such as Cloudsite Service) If Another Account Has Enabled the Message & SMS Service?
- Can I Migrate SMS Templates and Signatures Archived on a Third-Party Cloud Platform to HUAWEI CLOUD?
- How Do I Query SMS Messages Replied by Subscribers (Uplink SMS Messages)? (Chinese Mainland SMS)
- Can I Use Huawei Cloud Message & SMS When My Services Are Deployed on Other Cloud Platforms?
- How Do I Enable the Message & SMS Service Again After It Is Disabled Due to Arrears?
- Are There Any Requirements on the Format of the Number File to Be Imported When Using the Group Message Assistant?
- Are There Any Requirements on the Format of the Mobile Numbers Entered When Calling APIs to Send SMSs?
- Where Are Message & SMS Servers Deployed?
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