Help Center/ My Account/ FAQs/ Basic Information (for HUAWEI ID)/ Basic Concepts/ How Do I Distinguish and Set Various Accounts, Mobile Numbers, and Email Addresses?
Updated on 2026-01-23 GMT+08:00

How Do I Distinguish and Set Various Accounts, Mobile Numbers, and Email Addresses?

Item

Used For

Configured In

Constraint

Account Name

Login and password retrieval

Huawei account center

Name of a HUAWEI ID.

It can be changed only once.

Tenant Name

Huawei Cloud transaction, IAM user login, and Huawei Cloud API calling

Huawei Cloud account center

The account name of a user in Huawei Cloud services.

If the tenant name is different from the login ID of your HUAWEI ID, both of them are displayed in Huawei Cloud My Account. If they are the same, only the login ID is displayed.

Phone number/Email address

Login and security verification

Huawei account center

A phone number or an email address can be linked to only one HUAWEI ID.

Security phone number/Security email

Security verification

Huawei account center

A security phone number or security email can be linked to a maximum of five HUAWEI IDs.

Service Mobile Number/Service Email Address

Receiving Huawei Cloud news, promotion messages, and service-related verification codes

Huawei Cloud account center

Service Mobile Number: The mobile number linked to your Huawei Cloud account. It is displayed only when it is different from that linked to your HUAWEI ID.

A mobile number can be linked to a maximum of three Huawei Cloud accounts as a service mobile number.

Service Email Address: The email address linked to your Huawei Cloud account. It is displayed only when it is different from that linked to your HUAWEI ID.

An email address can be linked to only one Huawei Cloud account as a service email address.

Recipient phone number/email

Receiving Huawei Cloud message notifications

Huawei Cloud Message Center

The phone numbers and addresses of multiple recipients can be bound.