If your country/region isn't listed, select a neighboring country/region or dial the United States support phone number. For a smoother support experience, we recommend that you open separate support requests for each issue. You must have at least one subscription bought through Microsoft to access Microsoft support.

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 multiple strip light controllers, dimmers, and power supplies on the market, it can be hard to find the right product. Get everything you need for your lighting setup in one easy order. Our blog is your go-to source for lighting inspiration, how-to guides, and expert tips to make your space shine bright. Our primary white strips feature more closely spaced LEDs than those of our Narrow Beam Ceiling Spotlights competitors, providing seamless illumination that really shines. A smart, all-in-one way to manage your lights and home device

Issues that originate in customer networks fall outside of the Microsoft 365 support boundaries, and in these cases, customers must work with their networking team for assistance. The administrator is expected to provide initial assistance for the customer's users. However, if the administrator is unable to resolve issues with the help of self-service support resources, they should Contact support. Technical support for Microsoft 365 operated by 21Vianet subscriptions provides assistance with basic installation, setup, and general technical usage. If you're a volume licensing admin but are unable to access the admin center, you can create an online support request. With every subscription of Microsoft 365 operated by 21Vianet, 21Vianet support provides technical, presales, billing, and subscription support.

Self-service support is available for all Microsoft 365 operated by 21Vianet users, and includes troubleshooting tools and videos, help articles and videos, as well as forums and wikis in the Microsoft 365 community. For more self-help resources, see Microsoft 365 operated by 21Vianet. You must be an admin for a business subscription to use these support methods. Explore learning tools to collaborate on projects together and independently, all in one place. Create equitable learning environments that help students develop knowledge with familiar apps essential to both academic and future career success.


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Think again—add the most stylish light to your home with an even bigger, exclusive deal. For something truly amazing, our RGB color changing LED Strip Lights are the best choice. Choosing Narrow Beam Ceiling Spotlights the right color temperature depends on the mood and purpose of your space. This is currently a popular way to measure light output as opposed to older ways such as watt

Support is available both online through the Microsoft 365 operated by 21Vianet portal, and by telephone for both paid and trial subscriptions. The Microsoft 365 Copilot app brings together your favorite apps in one intuitive platform that keeps your data secure with enterprise data protection. With Microsoft 365, you can designate several types of administrators who serve different functions. This service description uses the generic title administrator to refer to all categories of administrators.


"These LED lights are awesome.Easy to install, and the quality is great." LED Strips Lights are dimmable, flexible and cuttable, which makes them very easy to install and use. RGB Strip Light uses individual red, green, and blue LEDs that mix to create multiple colors with the help of an RGB controller. Use our high quality LED Strip Lights for interior and exterior lighting areas where long lasting, eco-friendly and customizable linear illumination is needed. Dimming also helps reduce eye strain, save energy, and extend the life of your LED strip