Microsoft 365 Customer Service and Support
With deep expertise across data, applications, infrastructure, user experience and operations, our services experts are thinkers AND doers, focused on accelerating time-to-outcome for our customers. Whether it’s developing solutions that transform your technology stack, your business or your workforce, we’re in it with you. Whether it’s building digital experiences, harnessing data and AI, or securing critical systems, our services are designed to help you move faster and smarter. Our teams harness GenAI and Agentic AI across the Software Development Lifecycle to unlock real efficiency gains, ranging from 1.4x to 20x faster delivery depending on the use case. By combining expert engineering judgment with the power of AI, we accelerate product development, modernize platforms, and deliver results that scal
Assistance for billing and subscription management issues is available online or by telephone during China business hours (Beijing Time), Monday through Friday. Billing and subscription management support can be accessed using the same phone number and online service request process as with technical support. The support telephone number can be found on the Microsoft 365 operated by 21Vianet portal. 2 Severity A is only available to customers who signed an advanced online service agreement with 21Vianet through a sales account manager.
21Vianet also expect customer to collaborate at reasonable level accordingly. 21Vianet assigns a severity level to a case when it's opened, based on an assessment of the issue type and customer impact. Examples of issue types and severity levels are shown in the following table. Authorized administrators can use the Microsoft 365 operated by 21Vianet portal to submit service requests online and access support telephone numbers. We can help you find a solution or connect you to technical support.
With deep expertise across data, applications, infrastructure, user experience and operations, our services experts are thinkers AND doers, focused on accelerating time-to-outcome for our customers. Whether it’s developing solutions that transform your technology stack, your business or your workforce, we’re in it with you. Whether it’s building digital experiences, harnessing data and AI, or securing critical systems, our services are designed to help you move faster and smarter. Our teams harness GenAI and Agentic AI across the Software Development Lifecycle to unlock real efficiency gains, ranging from 1.4x to 20x faster delivery depending on the use case. By combining expert engineering judgment with the power of AI, we accelerate product development, modernize platforms, and deliver results that scal
Assistance for billing and subscription management issues is available online or by telephone during China business hours (Beijing Time), Monday through Friday. Billing and subscription management support can be accessed using the same phone number and online service request process as with technical support. The support telephone number can be found on the Microsoft 365 operated by 21Vianet portal. 2 Severity A is only available to customers who signed an advanced online service agreement with 21Vianet through a sales account manager.
21Vianet also expect customer to collaborate at reasonable level accordingly. 21Vianet assigns a severity level to a case when it's opened, based on an assessment of the issue type and customer impact. Examples of issue types and severity levels are shown in the following table. Authorized administrators can use the Microsoft 365 operated by 21Vianet portal to submit service requests online and access support telephone numbers. We can help you find a solution or connect you to technical support.