# Plain Docs

## Docs

- [Attachments](https://www.plain.com/docs/api-reference/attachments): How to upload attachments programmatically for messages and events in Plain.
- [Customer cards](https://www.plain.com/docs/api-reference/customer-cards): Live context straight from your own systems when helping customers.
- [Create a customer card](https://www.plain.com/docs/api-reference/customer-cards/create-a-customer-card): Define the details of the customer card.
- [Examples](https://www.plain.com/docs/api-reference/customer-cards/examples)
- [Playground](https://www.plain.com/docs/api-reference/customer-cards/playground)
- [Protocol](https://www.plain.com/docs/api-reference/customer-cards/protocol): Learn how we request customer cards from your API and how to respond to these requests.
- [API Explorer](https://www.plain.com/docs/api-reference/graphql/api-explorer)
- [Authentication](https://www.plain.com/docs/api-reference/graphql/authentication)
- [Companies](https://www.plain.com/docs/api-reference/graphql/companies)
- [Get companies](https://www.plain.com/docs/api-reference/graphql/companies/get-companies)
- [Update customer company](https://www.plain.com/docs/api-reference/graphql/companies/update-customer-company)
- [Customers](https://www.plain.com/docs/api-reference/graphql/customers)
- [Customer groups](https://www.plain.com/docs/api-reference/graphql/customers/customer-groups)
- [Delete customers](https://www.plain.com/docs/api-reference/graphql/customers/delete)
- [Fetch customers](https://www.plain.com/docs/api-reference/graphql/customers/get)
- [Upserting customers](https://www.plain.com/docs/api-reference/graphql/customers/upsert): Learn how to create and update customers programmatically.
- [Error codes](https://www.plain.com/docs/api-reference/graphql/error-codes): If you receive an error code as part of an API call, this is where you can look up what it means
- [Error handling](https://www.plain.com/docs/api-reference/graphql/error-handling): GraphQL queries and mutations require different error handling.
- [Events](https://www.plain.com/docs/api-reference/graphql/events): Log important events to have the full picture of what happened in Plain.
- [Create a customer event](https://www.plain.com/docs/api-reference/graphql/events/create-customer-event)
- [Create a thread event](https://www.plain.com/docs/api-reference/graphql/events/create-thread-event)
- [Introduction](https://www.plain.com/docs/api-reference/graphql/introduction): An overview of Plain's GraphQL API.
- [Labels](https://www.plain.com/docs/api-reference/graphql/labels)
- [Add labels](https://www.plain.com/docs/api-reference/graphql/labels/add)
- [Remove labels](https://www.plain.com/docs/api-reference/graphql/labels/remove)
- [Messaging](https://www.plain.com/docs/api-reference/graphql/messaging)
- [Reply to emails](https://www.plain.com/docs/api-reference/graphql/messaging/reply-email)
- [Reply to threads](https://www.plain.com/docs/api-reference/graphql/messaging/reply-to-thread)
- [Send new emails](https://www.plain.com/docs/api-reference/graphql/messaging/send-email)
- [Pagination](https://www.plain.com/docs/api-reference/graphql/pagination)
- [Schema](https://www.plain.com/docs/api-reference/graphql/schema)
- [Tenants](https://www.plain.com/docs/api-reference/graphql/tenants)
- [Add customers to tenants](https://www.plain.com/docs/api-reference/graphql/tenants/add-customers)
- [Get tenants](https://www.plain.com/docs/api-reference/graphql/tenants/get)
- [Remove customers to tenants](https://www.plain.com/docs/api-reference/graphql/tenants/remove-customers)
- [Set customer tenants](https://www.plain.com/docs/api-reference/graphql/tenants/set-customer-tenants)
- [Upserting tenants](https://www.plain.com/docs/api-reference/graphql/tenants/upsert)
- [Threads](https://www.plain.com/docs/api-reference/graphql/threads)
- [Assignment](https://www.plain.com/docs/api-reference/graphql/threads/assignment)
- [null](https://www.plain.com/docs/api-reference/graphql/threads/autoresponders)
- [Create threads](https://www.plain.com/docs/api-reference/graphql/threads/create)
- [Changing status](https://www.plain.com/docs/api-reference/graphql/threads/status-changes)
- [Thread fields](https://www.plain.com/docs/api-reference/graphql/threads/thread-fields)
- [Tiers & SLAs](https://www.plain.com/docs/api-reference/graphql/tiers)
- [Add companies and tenants to tiers](https://www.plain.com/docs/api-reference/graphql/tiers/add-members)
- [Get tiers](https://www.plain.com/docs/api-reference/graphql/tiers/get)
- [Remove companies and tenants to tiers](https://www.plain.com/docs/api-reference/graphql/tiers/remove-members)
- [Update company tier](https://www.plain.com/docs/api-reference/graphql/tiers/update-company-tier)
- [Update tenant tier](https://www.plain.com/docs/api-reference/graphql/tiers/update-tenant-tier)
- [Typescript SDK](https://www.plain.com/docs/api-reference/graphql/typescript-sdk)
- [mTLS](https://www.plain.com/docs/api-reference/mtls)
- [Request signing](https://www.plain.com/docs/api-reference/request-signing)
- [UI Components](https://www.plain.com/docs/api-reference/ui-components)
- [Badge](https://www.plain.com/docs/api-reference/ui-components/badge): Useful for statuses or when you need to attract attention to something.
- [Container](https://www.plain.com/docs/api-reference/ui-components/container): Useful when you need to create a bit of structure.
- [CopyButton](https://www.plain.com/docs/api-reference/ui-components/copy-button): Useful if you have any IDs or other details you want to copy for use in messages or outside of Plain.
- [Divider](https://www.plain.com/docs/api-reference/ui-components/divider): Useful when you need a bit of structure.
- [LinkButton](https://www.plain.com/docs/api-reference/ui-components/link-button): Useful when you want to link somewhere external (e.g. your own admin tool or payment provider)
- [PlainText](https://www.plain.com/docs/api-reference/ui-components/plain-text): Useful when you want to show any text that should not have any formatting (is not Markdown). If you want markdown please use [Text](/api-reference/ui-components/text).
- [Row](https://www.plain.com/docs/api-reference/ui-components/row): Useful when you need to show two things next to each-other.
- [Spacer](https://www.plain.com/docs/api-reference/ui-components/spacer)
- [Text](https://www.plain.com/docs/api-reference/ui-components/text)
- [Webhooks](https://www.plain.com/docs/api-reference/webhooks)
- [Customer created](https://www.plain.com/docs/api-reference/webhooks/customer-created)
- [Customer deleted](https://www.plain.com/docs/api-reference/webhooks/customer-deleted)
- [Customer Group Membership Changed Event](https://www.plain.com/docs/api-reference/webhooks/customer-group-membership-changed)
- [Customer updated](https://www.plain.com/docs/api-reference/webhooks/customer-updated)
- [Thread assignment transitioned](https://www.plain.com/docs/api-reference/webhooks/thread-assignment-transitioned)
- [Chat sent](https://www.plain.com/docs/api-reference/webhooks/thread-chat-sent)
- [Thread created](https://www.plain.com/docs/api-reference/webhooks/thread-created)
- [Email received](https://www.plain.com/docs/api-reference/webhooks/thread-email-received)
- [Email sent](https://www.plain.com/docs/api-reference/webhooks/thread-email-sent)
- [Thread Field created](https://www.plain.com/docs/api-reference/webhooks/thread-field-created)
- [Thread Field deleted](https://www.plain.com/docs/api-reference/webhooks/thread-field-deleted)
- [Thread Field updated](https://www.plain.com/docs/api-reference/webhooks/thread-field-updated)
- [Thread labels changed](https://www.plain.com/docs/api-reference/webhooks/thread-labels-changed)
- [Note created](https://www.plain.com/docs/api-reference/webhooks/thread-note-created)
- [Thread priority changed](https://www.plain.com/docs/api-reference/webhooks/thread-priority-changed)
- [Thread SLA status transitioned](https://www.plain.com/docs/api-reference/webhooks/thread-service-level-agreement-status-transitioned)
- [Slack message received](https://www.plain.com/docs/api-reference/webhooks/thread-slack-message-received)
- [Slack message sent](https://www.plain.com/docs/api-reference/webhooks/thread-slack-message-sent)
- [Thread status transitioned](https://www.plain.com/docs/api-reference/webhooks/thread-status-transitioned)
- [Webhooks and Typescript](https://www.plain.com/docs/api-reference/webhooks/typescript)
- [Webhook Versions](https://www.plain.com/docs/api-reference/webhooks/versions)
- [Assignment](https://www.plain.com/docs/assignment)
- [Auto-responses](https://www.plain.com/docs/auto-responses)
- [Broadcasts](https://www.plain.com/docs/broadcasts)
- [Chat](https://www.plain.com/docs/chat)
- [Authentication](https://www.plain.com/docs/chat/authentication)
- [Companies](https://www.plain.com/docs/company-support)
- [Contact forms](https://www.plain.com/docs/contact-forms): The best way to offer support at scale.
- [Customer cards](https://www.plain.com/docs/customer-cards): Live context straight from your own systems when helping customers.
- [Customer groups](https://www.plain.com/docs/customer-groups): Organize and segment your customers.
- [Data model](https://www.plain.com/docs/data-model): A quick overview of how Plain is structured.
- [Digests](https://www.plain.com/docs/digests)
- [Email](https://www.plain.com/docs/email)
- [Alternate addresses](https://www.plain.com/docs/email/alternate-emails)
- [Email avatars](https://www.plain.com/docs/email/email-avatars)
- [Receiving emails](https://www.plain.com/docs/email/receiving)
- [Sending emails](https://www.plain.com/docs/email/sending)
- [Events](https://www.plain.com/docs/events): Get the full picture of what happened and why straight in Plain.
- [Headless Support Portal](https://www.plain.com/docs/headless-support-portal): Give your customers visibility over their support requests.
- [Insights](https://www.plain.com/docs/insights)
- [Discourse Integration](https://www.plain.com/docs/integrations/discourse)
- [Help Scout Sync](https://www.plain.com/docs/integrations/helpscout)
- [HubSpot Sync](https://www.plain.com/docs/integrations/hubspot)
- [Jira integration](https://www.plain.com/docs/integrations/jira)
- [Linear integration](https://www.plain.com/docs/integrations/linear)
- [Salesforce importer](https://www.plain.com/docs/integrations/salesforce)
- [Zendesk importer](https://www.plain.com/docs/integrations/zendesk)
- [Can I forward emails to Plain?](https://www.plain.com/docs/knowledge-base/kb-forwarding-emails)
- [Can I connect my personal email address to Plain?](https://www.plain.com/docs/knowledge-base/kb-personal-email)
- [How long does it take to set up Plain? Do I need to have someone technical do it for me?](https://www.plain.com/docs/knowledge-base/kb-setup-time)
- [Are you SOC2 certified?](https://www.plain.com/docs/knowledge-base/kb-soc2)
- [Knowledge Base](https://www.plain.com/docs/knowledge-base/overview)
- [Labels](https://www.plain.com/docs/labels)
- [Microsoft Teams](https://www.plain.com/docs/microsoft-teams)
- [Installation](https://www.plain.com/docs/microsoft-teams/installation)
- [Notifications](https://www.plain.com/docs/notifications)
- [Plain AI](https://www.plain.com/docs/plain-ai)
- [Priorities](https://www.plain.com/docs/priorities)
- [Quickstart](https://www.plain.com/docs/quickstart): Everything you need to know to start supporting your customers with Plain.
- [Roles & Permissions](https://www.plain.com/docs/roles-in-plain)
- [Security](https://www.plain.com/docs/security)
- [Shortcuts](https://www.plain.com/docs/shortcuts)
- [Slack](https://www.plain.com/docs/slack)
- [Data Retention](https://www.plain.com/docs/slack/data-retention)
- [Ingestion Modes](https://www.plain.com/docs/slack/ingestion-modes)
- [Smart AI Replies](https://www.plain.com/docs/smart-ai-replies)
- [Snippets](https://www.plain.com/docs/snippets)
- [null](https://www.plain.com/docs/statuses)
- [Syntax highlighting](https://www.plain.com/docs/syntax-highlighting)
- [Tenants](https://www.plain.com/docs/tenant-support)
- [Thread Discussions](https://www.plain.com/docs/thread-discussions)
- [Thread Fields](https://www.plain.com/docs/thread-fields): Extend and customise Plain's data model.
- [Tiers & SLAs](https://www.plain.com/docs/tiers)
- [Workflow Rules](https://www.plain.com/docs/workflow-rules)


## Optional

- [Changelog](https://plain.com/changelog)
- [Blog](https://plain.com/blog)