> ## Documentation Index > Fetch the complete documentation index at: https://docs.tied.com/llms.txt > Use this file to discover all available pages before exploring further. # Update spend caps > Sets all three caps. All four fields are required — this replaces the configuration rather than patching it. Writes are guarded by `expected_digest`: send the `configuration_digest` from your last read, and if someone changed the setting in between you get a **409** whose `error.current_state` is the configuration as it now stands. Re-read, show the user what changed, and resubmit. ## OpenAPI ````yaml /api-reference/openapi.json patch /api/v1/accounts/{account_id}/billing/spend_caps openapi: 3.0.4 info: title: Tied API description: >- The Tied REST API. Three families of endpoint, each with its own credential: **Application** for everything inside an account, **Platform** for provisioning accounts and users, and **Client** for acting as a contact from your own surface. version: 1.1.0 termsOfService: https://tied.com/legal contact: email: hello@tied.com license: name: MIT License url: https://opensource.org/licenses/MIT servers: - url: https://app.tied.com description: Tied cloud security: [] tags: - name: Account AgentBots description: Account-specific Agent Bots - name: Agents description: Agent management APIs - name: Canned Responses description: Pre-defined responses for common queries - name: Contacts description: Contact management APIs - name: Contact Labels description: Manage contact labels - name: Conversation Assignments description: Manage conversation assignments - name: Conversation Labels description: Manage conversation labels - name: Conversations description: Conversation management APIs - name: Custom Attributes description: Custom fields for contacts and conversations - name: Custom Filters description: Saved filters for conversations - name: Inboxes description: Communication channels setup - name: Integrations description: Third-party integrations - name: Messages description: Message management APIs - name: Profile description: User profile APIs - name: Reports description: Analytics and reporting APIs - name: Teams description: Team management APIs - name: Webhooks description: Event notification webhooks - name: Automation Rule description: Workflow automation rules - name: Help Center description: Knowledge base management - name: Contacts API description: Public contact APIs - name: Conversations API description: Public conversation APIs - name: Messages API description: Public message APIs - name: CSAT Survey Page description: Customer satisfaction survey - name: Account description: >- The authenticated user's own account — read and update account settings. Distinct from the Platform family's **Accounts**, which provisions accounts across an installation. - name: Audit Logs description: Read the account's audit trail - name: Inbox API description: Public inbox lookup by channel identifier - name: Labels description: >- Create and manage the account's labels. Applying one to a conversation or contact is a separate endpoint under those resources. - name: Macros description: >- Saved multi-step actions an agent — or an integration — can run against one or more conversations. - name: Campaigns description: Ongoing website campaigns and one-off SMS and WhatsApp sends. - name: Contact Notes description: Internal notes on a contact. Never visible to the contact. - name: Help Center Categories description: Categories group a portal's articles, one tree per allowed locale. - name: Help Center Articles description: The articles a portal publishes, and their draft and archived states. - name: Summary Reports description: Per-agent, per-team, per-inbox and per-label totals for a period, as JSON. - name: Live Reports description: Right-now queue counts. No date range — these describe the present. - name: CSAT description: >- The satisfaction ratings contacts have submitted, and the metrics computed from them. - name: Notifications description: >- The per-user notification feed, its read and snooze state, and the settings that decide what lands in it. - name: Conversation Participants description: >- The agents watching a conversation. Participants get notified about it without being assigned to it. - name: Draft Messages description: >- The unsent reply held for a conversation. Stored in Redis, one per conversation. - name: Search description: >- One search service across conversations, contacts, messages and Help Center articles. - name: Dashboard Apps description: Embedded pages that appear as a tab beside a conversation. - name: Assignment Policies description: How conversations are handed out, and which inbox uses which policy. - name: Files description: Storing a file so another endpoint can attach it. - name: Bot Flows description: >- Scripted conversation flows, their versions, and the publish and rollback that move between them. - name: Billing description: >- Credit balance, usage, invoices, spend controls and the provider-hosted payment flows. - name: AMB Templates description: >- Saved Apple Messages primitive payloads an agent can reuse from the composer. - name: AMB Onboarding description: The in-flight Apple Messages for Business registration for an account. - name: Widget Session description: Starting a widget session and reading the visitor it belongs to. - name: Widget Conversation description: The visitor's conversation and its messages. - name: Widget Context description: Campaigns, agents, labels, events and uploads for a widget session. - name: CSAT Survey description: The public, unauthenticated survey a contact answers from a link. - name: Workspace description: Scheduling and cancelling deletion of the whole workspace. paths: /api/v1/accounts/{account_id}/billing/spend_caps: parameters: - $ref: '#/components/parameters/account_id' patch: tags: - Billing summary: Update spend caps description: >- Sets all three caps. All four fields are required — this replaces the configuration rather than patching it. Writes are guarded by `expected_digest`: send the `configuration_digest` from your last read, and if someone changed the setting in between you get a **409** whose `error.current_state` is the configuration as it now stands. Re-read, show the user what changed, and resubmit. operationId: update-billing-spend-caps requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/billing_spend_caps_update_payload' example: daily_cents: 12000 weekly_cents: 50000 monthly_cents: 150000 expected_digest: EXAMPLE responses: '200': description: Success content: application/json: schema: $ref: '#/components/schemas/billing_configuration_response' example: configuration: daily_cents: 12000 weekly_cents: 50000 monthly_cents: 150000 freshness: source: postgres_override as_of: '2026-09-21T04:25:03Z' state: fresh eligibility: eligible: true dunning_state: null pending: false error: null configuration_digest: EXAMPLE '403': description: Access denied content: application/json: schema: $ref: '#/components/schemas/error_message' '409': description: >- The configuration changed after you read it. `error.current_state` carries the current values. content: application/json: schema: $ref: '#/components/schemas/billing_error' '422': description: Invalid amount, or a required field was missing. content: application/json: schema: $ref: '#/components/schemas/billing_error' '503': description: The billing provider was unreachable. Retryable. content: application/json: schema: $ref: '#/components/schemas/billing_error' security: - userApiKey: [] components: parameters: account_id: in: path name: id schema: type: integer required: true description: The numeric ID of the account schemas: billing_spend_caps_update_payload: type: object required: - daily_cents - weekly_cents - monthly_cents - expected_digest properties: daily_cents: type: integer description: Daily cap in cents. example: 10000 weekly_cents: type: integer description: Weekly cap in cents. example: 50000 monthly_cents: type: integer description: Monthly cap in cents. example: 150000 expected_digest: type: string description: >- The `configuration_digest` from your last read. All four fields are required — this is a full replacement, not a patch. billing_configuration_response: type: object description: >- The shape every billing *control* returns: the current values, where they were read from, whether the account may change them, and the digest that guards the next write. properties: configuration: type: object description: The current settings. freshness: $ref: '#/components/schemas/billing_freshness' eligibility: type: object description: >- Whether this account can use the control, and why not when it cannot. dunning_state: type: string nullable: true description: >- Set when the account is in collections, which restricts some controls. pending: type: boolean description: True while a previous change is still being applied at the provider. limits: type: object description: Accepted bounds for each amount, where the control has them. error: type: object nullable: true description: Set when the control could be read but something is wrong with it. configuration_digest: type: string description: >- Fingerprint of the current configuration. **Send it back as `expected_digest` when you write**, and a 409 means someone changed it first. error_message: type: object description: >- The shape returned by `render_unauthorized`, `render_not_found_error` and `render_could_not_create_error`. properties: error: type: string description: A single human-readable message. example: Resource could not be found required: - error billing_error: type: object description: >- Billing does not use the account-wide error shapes. Every billing failure is this envelope, and `type` is the machine-readable reason to branch on. properties: error: type: object properties: type: type: string description: >- Machine-readable reason, e.g. `stale_configuration`, `unlinked_stripe_customer`, `portal_unavailable`, `invalid_row_key`, `billing_exempt`, `provider_unavailable`. message: type: string description: Human-readable explanation, safe to show a user. retryable: type: boolean description: Whether repeating the identical request could succeed. field: type: string description: The offending parameter, when one can be named. reason: type: string description: A narrower sub-reason, when one applies. current_state: type: object description: >- On a 409, the configuration as it now stands — re-read it, show the user, and resubmit with the new digest. description: The failure, with a machine-readable `type` and a `retryable` flag. billing_freshness: type: object description: >- Where this answer came from and how current it is. Billing reads several systems, so every response says which one it used — treat `state` other than `fresh` as a reason to be careful with the numbers rather than a failure. properties: source: type: string description: >- Which system answered — `postgres`, `clickhouse`, `stripe`, `billing_provider`, `postgres_override`. as_of: type: string description: ISO-8601 time the data was read. state: type: string description: '`fresh`, `stale`, `degraded` or `error`.' last_ingested_event_at: type: string nullable: true description: For the analytics source, the newest event it has. lag_seconds: type: number nullable: true description: How far behind that source is. securitySchemes: userApiKey: type: apiKey in: header name: api_access_token description: >- This token can be obtained by visiting the profile page or via rails console. Provides access to endpoints based on the user permissions levels. This token can be saved by an external system when user is created via API, to perform activities on behalf of the user. ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.