An SMS signature identifies the sender of an SMS message. Before applying for one, carefully read the guidelines in this article to ensure your application is approved quickly.
Sms signature
An SMS signature is placed in brackets 【】 before the message content to identify your company, product, or business. As shown in the example below, for the SMS signature Lingyang, the brackets 【】 are automatically added and the signature is placed at the very beginning of the message content before it is sent.

Usage notes:
Before applying for an SMS signature, prepare all required qualification documents.
We recommend authorizing all potential signatures in a single letter of authorization. This prevents you from needing to submit a new letter of authorization for each new signature application.
You can use an SMS signature only after your application is approved.
Sms signature application
1. Create an SMS signature application
Go to Quick Audience User Marketing > Outreach Marketing > Lingyang SuperXin > Signature Management, and then click New SMS Signature.

Follow the prompts to enter the signature text and select a signature source. Provide the required information based on the source you select, upload your business license and letter of authorization, and fill in the application description.

2. Requirements for different signature sources
Signature name
Signature source | Recommendation | Signature name requirements |
Enterprise or institution name | High | Full name: Must be identical to the name on your official business documents. Compliant example: [Lingyang Intelligent Technology Co., Ltd.] Non-compliant examples: [Lingyang], [Lingyang Technology] (These names are used by companies in multiple regions and are not unique); [Hangyang Technology], [Hangzhou Lingxin] (These signatures are not fully contained within the company's full name or they reorder characters). |
Registered unique trademark name | Medium | The trademark must be searchable on the China Trademark Office, CNIPA - China Trademark Network. The trademark owner must match the enterprise name and be unique. |
E-commerce platform store name | Low | Scope: Only for private domain audiences on Taobao-affiliated platforms. You must register this with the Lingyang operations team in advance. Link requirements: The landing page URL in the template must be a Lingyang platform domain, such as Uniqueness: Each store can have only one active signature at a time. The signature must be 3 to 15 characters long. Prohibited names: You cannot use brand names of the Lingyang group (such as "Lingyang" or "Alibaba Cloud") alone as your signature. Naming conventions: Tmall Flagship Store: The signature must be derived from the store name or brand name. For example, if the store name is "Zhangsan Men's Wear Flagship Store," you can use "Zhangsan Men's Wear Flagship Store," "Zhangsan Men's Wear," or "Zhangsan." Tmall Authorized Store/Specialty Store: The signature must be identical to the store name. Taobao Store: The signature must be "Store Name + Taobao Store" or "Taobao Account + Taobao Store." Special requirements: For store names in English, such as The case and spacing of the signature must match the store name exactly. |
Associated store
Select the store that will use this signature.
Business license/Trademark registration certificate
Upload the corresponding document image based on your selected signature source.
The uploaded image must not have watermarks, except for those added specifically for this registration. Documents with other watermarks will be rejected.
- Note
Business License Example:

Trademark Registration Certificate Example:

Letter of authorization
Download the letter of authorization template and upload the stamped document.
Qualification information
According to the regulations of the Ministry of Industry and Information Technology (MIIT) and carriers, real-name registration is required for all SMS signatures. Otherwise, messages will fail to deliver.
To manage your qualifications, go to the Qualification Management List.
SMS template example
If the signature will be used for marketing or notification messages, you must also register an SMS template.
More information
You can upload supplementary materials such as screenshots of a login page or backend console, a software copyright certificate, or supplemental agreements. If you have multiple files, combine them into a single file. Supported formats are png, jpg, jpeg, doc, docx, and pdf.
Requirements for driving traffic via SMS
To comply with regulatory requirements for preventing telecommunication and online fraud and to ensure the security and stability of SMS services, all traffic-driving information in SMS messages must be registered and reviewed.
Phone number
If your message content includes a landline or mobile phone number, you must register the number. You can register a maximum of two numbers.
Special service number format: 40034859435
Mobile phone number format: 1381234****
Landline number format: 0108458**** or 8458****
Link
If your message content includes a fixed link, you must register the link.
1) Requirements for link registration:
You must register a link by providing its full URL or a valid prefix. See the following examples:
Example 1: [SMS Signature] Dear XXX, click f.eg.com/abc/qweD to view. Reply R to unsubscribe.
Standard registration formats:
Format 1: f.eg.com/abc/qweD
Format 2: f.eg.com/abc
Format 3: f.eg.com
Non-compliant registration formats:
Format 1: eg.com
Format 2: f.eg
Format 3: abc/qweD
Format 4: f.eg.com/abc/qw
Example 2: [SMS Signature] Dear XXX, click https://w.egeg.com/abc/qweD to view. Reply R to unsubscribe.
Standard registration formats:
Format 1: https://w.egeg.com/abc/qweD
Format 2: https://w.egeg.com/abc/
Format 3: https://w.egeg.com
Non-compliant registration formats:
Format 1: https://w.egeg
Format 2: w.egeg.com/abc
Format 3: w.egeg.com
3. Check signature review status
After you submit a signature application, you can view the submitted signature and its review status in the Signature Management section. To expedite the review, provide the signature name to your Quick Audience support representative for prioritization.
You can perform the following actions:
Delete: If you no longer need a signature, click Delete and confirm to remove it.
Edit: You can edit rejected signatures. After editing, the signature is resubmitted for review.

Real-name registration application
To comply with the regulations of the Ministry of Industry and Information Technology (MIIT) and various carriers, standardize the SMS market, and protect user rights, Quick Audience is implementing real-name registration for all SMS signatures. This section explains the policy changes and guides you through the necessary steps.
1. Sms real-name authentication
SMS real-name authentication is the review process for your SMS signatures. It involves submitting your organization's qualification documents to register your real-name information with carriers or SMS service providers for your SMS sub-port number.
2. Mandatory real-name authentication
In accordance with relevant documents such as Gong Xin Guan Han [2023] No. 794 and carrier requirements for standardizing business practices and security management for port-based SMS services, all SMS messages must originate from an account that has completed the carrier's real-name registration.
Policy interpretation
To control the sending of illegal and non-compliant SMS messages and to meet carrier requirements for real-name sending, you must provide qualification documents for the signature owner before applying for a domestic SMS signature. Use this guide to prepare the required documents, apply for qualifications in the console, and then apply for your signature and template.
In response to the MIIT's latest requirements for real-name management of SMS signatures, carriers have recently strengthened their controls. The qualification information associated with a signature must be complete and accurate to ensure successful real-name registration. Currently, the carrier real-name registration process takes an average of 5 to 7 business days. However, based on recent observations, some carrier registrations may take 7 to 10 business days. Carriers do not guarantee this timeline, and the actual time may be longer.

3. Real-name registration requirements
Field | Description |
Qualification name | Used to identify the set of qualification information. Note: The name cannot be changed after submission. |
Remarks | Used to add notes to the qualification information. |
Enterprise name | Must be identical to the name on your official business documents. |
Unified Social Credit Code | The Unified Social Credit Code corresponding to the Enterprise Name. |
Document type | Submit a photo of a document that includes the Unified Social Credit Code. Choose one of the following:
|
Upload document | Upload an image of the document. Note: The official seal must be red and clearly visible. |
Document validity period | Select the correct validity period for the document. |
Legal representative name | Enter the full name of the enterprise's legal representative. If the organizational document does not list a legal representative but includes a responsible person or chief representative, prepare ID photos of that person. If the organizational document lists neither a legal representative nor any responsible person, provide the name and ID photos of the primary business contact. |
Legal representative ID number | Enter the ID card number of the enterprise's legal representative. Due to regulatory requirements, you must provide the name and ID number of the legal representative registered with the industrial and commercial authorities. Incomplete information may lead to registration failure and prevent you from sending SMS messages. |
Legal representative mobile number | Enter the mobile phone number of the legal representative. |
Legal representative document validity period | Enter the validity period of the legal representative's ID card. |
Contact person name | Enter the name of the contact person (administrator). To increase the registration success rate, ensure that one administrator manages only one enterprise. An administrator applying for qualifications for multiple enterprises may lead to registration failure. |
Contact person ID number | Enter the ID card number of the contact person. |
Contact person mobile number | Enter the mobile phone number of the contact person. |
Upload document | Submit ID photos of the contact person. |
More materials | You can upload supplementary materials, such as agreements. |
4. Real-name authentication
Send the following documents to your Quick Audience support representative, who will handle the registration for you.
Special industries may require additional materials for registration. Contact your Quick Audience support representative for more details.
The following materials are required for general signature authentication and qualification review.
Required material
Remarks
SMS signature
Enterprise name
Provide the business license.
Unified Social Credit Code
Name and ID number of the legal representative
Name and ID number of the contact person
Power of attorney
Fill out the Lingyang SuperXin power of attorney template.
The authorization validity period must be one year or longer.
We recommend authorizing all potential signatures in one power of attorney to avoid submitting new documents for future signature applications.
Review time: Due to the high volume of applications resulting from the real-name registration requirements, qualification reviews are expected to be completed within 3 business days. The review time may be longer during verification escalations or outside of business hours. If you have an urgent sending task, contact your Quick Audience support representative to request prioritization.
Alibaba Cloud strictly complies with all relevant laws and regulations to protect your information. The documents you provide are used only for qualification review and will not be used for any other purpose.
Sms signature rules
1. General rules
SMS signature guidelines are subject to change based on real-time requirements from the MIIT and carriers. The review outcome is final.
Category | Description |
Signature content |
|
Signature length | The signature must be between 2 and 12 characters. Each Chinese character, letter, or number counts as one character. |
Signature format |
|
Restricted businesses for signature applications |
|
2. Requirements for specific industries
For certain industries, you must provide the following additional materials when applying for a signature:
Industry | Description |
Gaming industry | In addition to the general requirements, you must provide the game software copyright, game license number (ISBN), and registered trademark. |
Video industry | In addition to the general requirements, you must provide one of the following: Publication Business License, Internet Publishing License, Online Culture Business License, or Online Publishing Service License. If your content involves TV series (including web series), you must provide the "Online Audio-Visual Program Information Registration Certificate" and the "TV Series Production License." |
3. Examples
After reading the signature guidelines, review these examples of signatures with high and low approval rates to better understand the rules.
Approval status
SMS signature example
Reason
High approval rate
✅
Lingyang,Zhangsan Photography StudioCompany abbreviation or full name that clearly identifies the business and matches the name on the business license.
✅
Cainiao,AmapA functional app available in an app store that clearly identifies the SMS sender.
Low approval rate
❌
Top Picks,Latest NewsAmbiguous or neutral signature that does not identify the sender's company or specific business.
❌
BestBuy,TaobaoDomestic SMS does not support purely English signatures or traditional Chinese characters.
❌
2025,Tian_Mao,VIP0123456789Purely numeric signatures, special characters, and signatures longer than 12 characters are not supported.
❌
Zhang San,For testingSignatures cannot be personal names or contain the word "test."
If a registered trademark name or an approved app name is considered a neutral signature by a carrier (meaning the signature does not reflect the unique identity of the business or its connection to the registered entity), it will be rejected as non-compliant. We recommend using the full or abbreviated name of your registered business as the SMS signature. Non-compliant examples include [Meeting Assistant] and [Service Reminder].