cloud: add msp docs

TOC-tidb-cloud.md

@@ -284,6 +284,9 @@
   - [Billing from AWS or GCP Marketplace](/tidb-cloud/tidb-cloud-billing.md#billing-from-aws-marketplace-or-google-cloud-marketplace)
   - [Billing for Changefeed](/tidb-cloud/tidb-cloud-billing-ticdc-rcu.md)
   - [Billing for Data Migration](/tidb-cloud/tidb-cloud-billing-dm.md)
+- Managed Service Provider
+  - [Managed Service Provider](/tidb-cloud/managed-service-provider.md)
+  - [MSP Customer](/tidb-cloud/managed-service-provider-customer.md)
 - API
   - [API Overview](/tidb-cloud/api-overview.md)
   - API Reference

tidb-cloud/managed-service-provider-customer.md

@@ -0,0 +1,36 @@
+---
+title: Managed Service Provider Customer
+summary: Learn how to become a Managed Service Provider (MSP) customer.
+---
+
+# Managed Service Provider Customer
+
+A Managed Service Provider (MSP) customer is a customer who uses the TiDB Cloud Services provided by the Managed Service Provider. The MSP customer need to purchase TiDB Cloud and pay invoices through the MSP channel.
+
+This document describes how to become an MSP customer and some common operations for MSP customers.
+
+## Create a new MSP customer account
+
+To create a new MSP customer account, visit the MSP dedicated sign-up page. Each MSP has a unique dedicated sign-up page. Contact your MSP to get the URL of the sign-up page.
+
+## Migrate from a direct TiDB Cloud account to an MSP customer account
+
+> **Tip:**
+>
+> Direct customers are the end customers who purchase TiDB Cloud and pay invoices directly from PingCAP.
+
+If you are currently a direct customer with a TiDB Cloud account, you can ask your MSP to migrate your account to an MSP customer account.
+
+The migration will take effect on the 1st of a future month. Discuss with your MSP to determine the specific effective date.
+
+On the effective day of migration, you will receive an email notification.
+
+## Check your future bills
+
+Once you successfully become an MSP customer, you will pay invoices through your MSP. Ask your MSP where you can check your bills and invoices.
+
+PingCAP does not send any bills and invoices to MSP customers.
+
+## Check your history bills
+
+If you have migrated from a direct TiDB Cloud account to an MSP customer account, you can view your history bills prior to the migration by visiting **Billing** > **Bills** > **History** in the TiDB Cloud console.

tidb-cloud/managed-service-provider.md

@@ -0,0 +1,16 @@
+---
+title: Managed Service Provider
+summary: Learn how to become a Managed Service Provider (MSP).
+---
+
+# Managed Service Provider
+
+A managed service provider (MSP) is a partner who resells TiDB Cloud and provides value-added services, including but not limited to TiDB Cloud organization management, billing services, and technical support.
+
+## Become an MSP of PingCAP
+
+If you are interested in the MSP program and would like to join as a partner, [contact sales](https://www.pingcap.com/partners/become-a-partner/) to enroll. We will carefully evaluate your request and get back to you soon.
+
+## Manage daily tasks for MSP customers
+
+Once you are approved as a PingCAP MSP, you will receive an API key for the [MSP Management API](https://docs.pingcap.com/tidbcloud/api/msp/v1beta1). You can manage your MSP customers' daily tasks via OpenAPI.

tidb-cloud/tidb-cloud-glossary.md

@@ -49,6 +49,10 @@ Data Service (beta) enables you to access TiDB Cloud data via an HTTPS request u
 
 For more information, see [Data Service Overview](/tidb-cloud/data-service-overview.md).
 
+### Direct Customer
+
+A direct customer is an end customer who purchases TiDB Cloud and pays invoices directly from PingCAP. This is distinguished from an [MSP customer](#msp-customer).
+
 ## E
 
 ### Endpoint
@@ -67,6 +71,14 @@ A user that has been invited to an organization, with access to the organization
 
 Starting from v5.0, TiDB introduces Massively Parallel Processing (MPP) architecture through TiFlash nodes, which shares the execution workloads of large join queries among TiFlash nodes. When the MPP mode is enabled, TiDB, based on cost, determines whether to use the MPP framework to perform the calculation. In the MPP mode, the join keys are redistributed through the Exchange operation while being calculated, which distributes the calculation pressure to each TiFlash node and speeds up the calculation. For more information, see [Use TiFlash MPP Mode](/tiflash/use-tiflash-mpp-mode.md).
 
+### MSP Customer
+
+A managed service provider (MSP) customer is an end customer who purchases TiDB Cloud and pays invoices through the MSP channel. This is distinguished from a [direct customer](#direct-customer).
+
+### Managed Service Provider (MSP)
+
+A managed service provider (MSP) is a partner who resells TiDB Cloud and provides value-added services, including but not limited to TiDB Cloud organization management, billing services, and technical support.
+
 ## N
 
 ### node