# Platform - [Policies](/platform/policies.md): Mechanic's operational policies — data retention, subscription plans, pricing, and privacy practices. - [Data](/platform/policies/data.md) - [Plans](/platform/policies/plans.md) - [Pricing](/platform/policies/pricing.md) - [Privacy](/platform/policies/privacy.md) - [Cache](/platform/cache.md): Store and retrieve data between Mechanic task runs using the key-value cache — with configurable expiration up to 60 days. - [Cache endpoints](/platform/cache/endpoints.md) - [Email](/platform/email.md): Send automated emails from Mechanic — templates, custom domains, DMARC, and receiving inbound email. - [Receiving email](/platform/email/receiving-email.md) - [Custom email addresses](/platform/email/custom-email-domain.md) - [DMARC](/platform/email/dmarc.md) - [Email templates](/platform/email/templates.md) - [Error handling](/platform/error-handling.md): Get actionable visibility into event, task, and action errors - [Events](/platform/events.md): Mechanic event sources, topics, and filters — Shopify webhooks, scheduled events, custom triggers, and more. - [Event filters](/platform/events/filters.md) - [GraphQL](/platform/graphql.md): Use Shopify's GraphQL Admin API in Mechanic Shopify automation tasks to read and write store data — orders, products, customers, metafields, and more. - [Basics](/platform/graphql/basics.md): GraphQL fundamentals for Mechanic — queries, mutations, pagination, and the Shopify Admin API. - [Shopify Admin API GraphiQL explorer](/platform/graphql/basics/shopify-admin-api-graphiql-explorer.md) - [Queries](/platform/graphql/basics/queries.md) - [Mutations](/platform/graphql/basics/mutations.md) - [Pagination](/platform/graphql/basics/pagination.md) - [Bulk operations](/platform/graphql/bulk-operations.md) - [Integrations](/platform/integrations.md): Connect Mechanic to third-party services like Google Sheets, Airtable, Slack, and more. - [Airtable](/platform/integrations/airtable.md) - [Appstle Subscriptions](/platform/integrations/appstle-subscriptions.md) - [Google](/platform/integrations/google.md) - [Google Drive and Google Sheets](/platform/integrations/google-drive-and-google-sheets.md) - [Judge.me](/platform/integrations/judge.me.md) - [Locksmith](/platform/integrations/locksmith.md): Access control, for anything in your online store :) - [Report Toaster](/platform/integrations/report-toaster.md) - [Shopify Flow](/platform/integrations/shopify-flow.md): Connect Mechanic with Shopify Flow — send triggers to Flow workflows and receive Flow events in Mechanic tasks. - [Slack](/platform/integrations/slack.md) - [Run links](/platform/integrations/run-links.md): Mechanic run links give your users a useful point of entry. - [Connecting third-party apps](/platform/integrations/connecting-third-party-apps.md): Learn how to connect Mechanic to any third-party app using HTTP APIs and webhooks. - [Liquid](/platform/liquid.md): Write Shopify automations in Liquid with Mechanic's custom tags, filters, and objects — including inline GraphQL queries and action definitions. - [Basics](/platform/liquid/basics.md): Learn the fundamentals of Liquid in Mechanic — syntax, data types, variables, filters, operators, and control flow. - [Syntax](/platform/liquid/basics/syntax.md) - [Data types](/platform/liquid/basics/types.md) - [Variables](/platform/liquid/basics/variables.md) - [Comments](/platform/liquid/basics/comments.md) - [Filters](/platform/liquid/basics/filters.md) - [Operators](/platform/liquid/basics/operators.md) - [Control flow](/platform/liquid/basics/control-flow.md): Control flow in Liquid — conditionals and iteration for directing task logic in Mechanic. - [Condition](/platform/liquid/basics/control-flow/condition.md) - [Iteration](/platform/liquid/basics/control-flow/iteration.md) - [Whitespace](/platform/liquid/basics/whitespace.md) - [Mechanic filters](/platform/liquid/filters.md): Complete reference of Liquid filters available in Mechanic — shopify, parse\_json, csv, hmac\_sha256, and more. - [Deprecated filters](/platform/liquid/filters/deprecated.md) - [Mechanic keyword literals](/platform/liquid/keyword-literals.md): Mechanic's keyword literals for Liquid — array, hash, and newline for working with data structures and formatting. - [array](/platform/liquid/keyword-literals/array.md) - [hash](/platform/liquid/keyword-literals/hash.md) - [newline](/platform/liquid/keyword-literals/newline.md) - [Mechanic objects](/platform/liquid/objects.md): Mechanic's Liquid objects — event, task, options, cache, action, and Shopify resource objects available in your task code. - [Action object](/platform/liquid/objects/action.md) - [Cache object](/platform/liquid/objects/cache.md) - [Event object](/platform/liquid/objects/event.md) - [Options object](/platform/liquid/objects/options.md) - [Task object](/platform/liquid/objects/task.md) - [Shopify REST Admin API](/platform/liquid/objects/shopify.md) - [Article object](/platform/liquid/objects/shopify/article.md) - [Blog object](/platform/liquid/objects/shopify/blog.md) - [Collection object](/platform/liquid/objects/shopify/collection.md) - [Customer object](/platform/liquid/objects/shopify/customer-object.md) - [Discount code object](/platform/liquid/objects/shopify/discount-code.md) - [Dispute object](/platform/liquid/objects/shopify/dispute.md) - [Draft order object](/platform/liquid/objects/shopify/draft-order.md) - [Fulfillment object](/platform/liquid/objects/shopify/fulfillment.md) - [Fulfillment order object](/platform/liquid/objects/shopify/fulfillment-order.md) - [Fulfillment event object](/platform/liquid/objects/shopify/fulfillment-event.md) - [Gift card object](/platform/liquid/objects/shopify/gift-card.md) - [Inventory item object](/platform/liquid/objects/shopify/inventory-item.md) - [Inventory level object](/platform/liquid/objects/shopify/inventory-level.md) - [Line item object](/platform/liquid/objects/shopify/line-item.md) - [Location object](/platform/liquid/objects/shopify/location.md) - [Metafields](/platform/liquid/objects/shopify/metafields.md) - [Metafield object](/platform/liquid/objects/shopify/metafields/metafield-object.md) - [Metafield representation object](/platform/liquid/objects/shopify/metafields/metafield-representation-object.md) - [Metafield collection object](/platform/liquid/objects/shopify/metafields/metafield-collection.md) - [Order object](/platform/liquid/objects/shopify/order.md) - [Order risk object](/platform/liquid/objects/shopify/order-risk.md) - [Price rule object](/platform/liquid/objects/shopify/price-rule.md) - [Product object](/platform/liquid/objects/shopify/product.md) - [Product image object](/platform/liquid/objects/shopify/product-image.md) - [Refund object](/platform/liquid/objects/shopify/refund.md) - [Shipping zone object](/platform/liquid/objects/shopify/shipping-zone.md) - [Shop object](/platform/liquid/objects/shopify/shop.md) - [Theme object](/platform/liquid/objects/shopify/theme.md) - [Theme asset object](/platform/liquid/objects/shopify/theme-asset.md) - [Transaction object](/platform/liquid/objects/shopify/transaction.md) - [Variant object](/platform/liquid/objects/shopify/variant.md) - [Mechanic tags](/platform/liquid/tags.md): Custom Liquid tags in Mechanic — action, log, error, permissions, and more for producing task output. - [liquid](/platform/liquid/tags/liquid.md) - [action](/platform/liquid/tags/action.md) - [assign](/platform/liquid/tags/assign.md) - [error](/platform/liquid/tags/error.md) - [log](/platform/liquid/tags/log.md) - [permissions](/platform/liquid/tags/permissions.md) - [Mechanic code snippets](/platform/liquid/mechanic-code-snippets.md): A list of convenience snippets provided in the Mechanic code editor. - [Shopify](/platform/shopify.md) - [Custom authentication](/platform/shopify/custom-authentication.md) - ["Read all orders"](/platform/shopify/read-all-orders.md) - [Webhooks](/platform/webhooks.md): Receive data from external services and trigger Mechanic tasks via webhooks.