Chinese Mainland SMS Signature Rules

Apply for a signature only when using the Chinese mainland SMS service. The signature must be enclosed in square brackets, for example, [Huawei Cloud].

Apply for one or more SMS signatures in advance according to service requirements and reserve sufficient time for review. Signatures can be reviewed only on workdays.

Read the following specifications and make sure that your signatures comply with the specifications.

Content Specifications

Content	The signature must be identifiable by the company, product, or application it belongs to. You are advised to use the full name or short name of the signature source. The signature cannot contain information involving pornography, gambling, drugs, or other contents that violate laws and regulations.
Length	The signature name must contain 2 to 12 characters of digits and letters. The name cannot contain only letters or digits. Each digit or letter is counted as one character.
Format	A signature is case-sensitive. For example, ABC001 and abc001 are different signatures. Enter the signature name when applying for a signature. The system automatically encloses the signature name with square brackets.

Review Rules

SMS signatures must be archived by the carrier. Provide the original business license or a copy of the business license with the company seal. The letter of attorney is not required if the third-party rights & interests are not involved. If the third party's rights may be violated, the third party's authorization must be obtained. For details, see Third-Party Rights & Interests.
The application materials to be provided vary according to the signature contents. For details, see Signature Application Materials.

Third-Party Rights & Interests

Concept

If Company A applies for a signature and the owner of the signature is A, the third party's rights and interests are not involved.
If Company A applies for a signature for Company B, and the owner of the signature is B, the third party's rights and interests are involved. Company B must give a letter of attorney to Company A.

Advantages

The concept of third-party rights & interests is introduced to simplify the signature application process. If third-party rights & interests are not involved, you can directly apply for a signature; you only need to upload the business license of the enterprise or public institution. If third-party rights & interests are involved, you need to upload the letter of attorney and business license of the enterprise or public institution.

Example

If Company A applies for a signature for itself due to business requirements, the signature belongs to A. In this case, the original or copy of A's business license (with the company seal) must be uploaded as application materials.

If Company A applies for a signature for Company B, the signature belongs to B. In this case, the original or copy of B's business license (with the company seal) and the letter of attorney provided by B to A must be uploaded as application materials.

Huawei Cloud Account (Enterprise Real-name Authentication Entity)	Signature Owner	Signature Application Materials (Business License)	Signature Application Materials (Letter of Attorney)
Company A	Company A	Original or copy of A's business license (with the company seal)	Not required
Company A	Company B	Original or copy of B's business license (with the company seal)	Letter of attorney provided by B to A

Power of attorney

Authorized party: name of the enterprise registered on Huawei Cloud.
Authorizing party: name of the enterprise that sends SMSs.
Validity period: actual period of using the signature.
Seal: seal of the entity that sends SMSs.
Signature of the legal representative or authorized representative: clear handwritten signature of the legal representative of the authorizing party.

See How Do I Obtain the Template of a Power of Attorney of the Third Party? to download the power of attorney template.

Figure 1 Power of attorney template

Click to enlarge

Signature Application Materials

Business licenses and letters of attorney to be uploaded must in the .jpg, .png, .gif, or .jpeg format with the size no greater than 2 MB. The image name cannot contain spaces. Otherwise, the file upload fails.

Signature Content	Application Requirements
Full name or short name of an enterprise or public institution	One of following certificates of the enterprise or public institution to which the signature belongs must be uploaded: Three-in-one certificate Five-in-one certificate Business license Public institution legal person certificate Social organization legal person registration certificate Organization code certificate Administrative law enforcement subject certificate Unified social credit code certificate Note: Select a certificate based on the site requirements. If third-party rights and interests are involved, upload the power of attorney. The full name must be the same as that on the enterprise certificate. If the full name contains more than 12 characters, use the short name instead. The short name must be consecutive and contained in the full name on the certificate. The short name must be unique and not be the same as that of other enterprises. For example, the short name of Shenzhen XAX Technology Co., Ltd. can be XAX Technology, but cannot be Shenzhen XAX Technology or XX Technology.
Full name of the application	One of following certificates of the enterprise or public institution to which the signature belongs must be uploaded: Three-in-one certificate Five-in-one certificate Business license Public institution legal person certificate Social organization legal person registration certificate Organization code certificate Administrative law enforcement subject certificate Unified social credit code certificate Note: Select a certificate based on the site requirements. If third-party rights and interests are involved, upload the power of attorney. Use the application that has completed the Internet Content Provider (ICP) filing as required by the Ministry of Industry and Information Technology (MIIT) and can be queried. The ICP filing entity of the application must be the same as the enterprise name. Enter the application download URL that contains the developer information.
Full name of the trademark	One of following certificates of the enterprise or public institution to which the signature belongs must be uploaded: Three-in-one certificate Five-in-one certificate Business license Public institution legal person certificate Social organization legal person registration certificate Organization code certificate Administrative law enforcement subject certificate Unified social credit code certificate Note: Select a certificate based on the site requirements. If third-party rights and interests are involved, upload the power of attorney. Use the trademark registered in China and can be queried on the Trademark Office of National Intellectual Property Administration website. The trademark owner is the same as the enterprise name. To check whether the signature applicant is consistent with account entity, access the homepage of Trademark Office of National Intellectual Property Administration, PRC.

Signature Content

Application Requirements

Full name or short name of an enterprise or public institution

One of following certificates of the enterprise or public institution to which the signature belongs must be uploaded:
- Three-in-one certificate
- Five-in-one certificate
- Business license
- Public institution legal person certificate
- Social organization legal person registration certificate
- Organization code certificate
- Administrative law enforcement subject certificate
- Unified social credit code certificate
Note: Select a certificate based on the site requirements.
If third-party rights and interests are involved, upload the power of attorney.
The full name must be the same as that on the enterprise certificate. If the full name contains more than 12 characters, use the short name instead.
The short name must be consecutive and contained in the full name on the certificate. The short name must be unique and not be the same as that of other enterprises.
For example, the short name of Shenzhen XAX Technology Co., Ltd. can be XAX Technology, but cannot be Shenzhen XAX Technology or XX Technology.

Full name of the application

One of following certificates of the enterprise or public institution to which the signature belongs must be uploaded:
- Three-in-one certificate
- Five-in-one certificate
- Business license
- Public institution legal person certificate
- Social organization legal person registration certificate
- Organization code certificate
- Administrative law enforcement subject certificate
- Unified social credit code certificate
Note: Select a certificate based on the site requirements.
If third-party rights and interests are involved, upload the power of attorney.
Use the application that has completed the Internet Content Provider (ICP) filing as required by the Ministry of Industry and Information Technology (MIIT) and can be queried. The ICP filing entity of the application must be the same as the enterprise name.
Enter the application download URL that contains the developer information.

Full name of the trademark

One of following certificates of the enterprise or public institution to which the signature belongs must be uploaded:
- Three-in-one certificate
- Five-in-one certificate
- Business license
- Public institution legal person certificate
- Social organization legal person registration certificate
- Organization code certificate
- Administrative law enforcement subject certificate
- Unified social credit code certificate
Note: Select a certificate based on the site requirements.
If third-party rights and interests are involved, upload the power of attorney.
Use the trademark registered in China and can be queried on the Trademark Office of National Intellectual Property Administration website. The trademark owner is the same as the enterprise name.

To check whether the signature applicant is consistent with account entity, access the homepage of Trademark Office of National Intellectual Property Administration, PRC.

Signature Review Description

Level-1 Issue	Level-2 Issue	Handling Suggestion
Materials or sources are incorrect.	The entity that submits materials is inconsistent with that of the application.	Check whether the signature is incorrect (incorrect spelling or homophone). Check whether incorrect materials are submitted. For example, business license A is required, but you incorrectly upload business license B.
	No related application is found.	Check whether the signature is incorrect (incorrect spelling or homophone). Check whether the application is online.
	The signature is inconsistent with the enterprise name.	The signature is not the full name or short name of an enterprise, but the product name of the enterprise. You can enter the link to the official product introduction in the Description text box. If the signature is a company trademark or app, select a proper signature source.
	If the signature source is set to application and no download link is provided,	Provide the link for downloading the application that contains developer information.
	No trademark is found.	Check whether the signature is incorrect (incorrect spelling or homophone). Check the trademark information on the Trademark Office of National Intellectual Property Administration website.
	Pictures cannot be displayed.	The picture file may be damaged during the upload. Ensure that the file format is correct and upload the file again.
	A third party is involved, and the uploaded business license is of the applicant.	If a signature involves third-party rights and interests, provide the business license of the party to which the signature belongs.
The service type is not supported.	Promotion and notification signatures are not supported.	Some industries do not support all types of SMSs. For details, see Template and Variable Specifications.
The format is incorrect.	The signature name must contain 2 to 12 characters of digits and letters. The name cannot contain only letters or digits.	Use Chinese signatures for Chinese mainland SMSs. If the signature is the English name of a company, provide the official website of the company for verification.
The format is incorrect.	Non-informative signatures cannot be used to identify the products and apps of enterprises and institutions.	Prepare signatures based on the selected signature format. If there are many products with similar names, use their full names.