> ## Documentation Index > Fetch the complete documentation index at: https://help.onetsolutions.net/llms.txt > Use this file to discover all available pages before exploring further. # Start the offered backup month > Queues the activation of the daily backup configurable option on the WHMCS service backing this instance. The worker adds the option price for the service's own billing cycle to its stored recurring amount — the catalogue is never recomputed, so negotiated prices are preserved — then calls ModuleChangePackage so SoPanel turns backups on, and credits one month of the option to the client. Refused when the instance is not active, backups are already on, the size has no sellable option, or a trial is already open. ## OpenAPI ````yaml https://api.onetsolutions.net/schema post /v1/organizations/{organization_id}/projects/{project_id}/compute/instances/{instance_id}/backup-trial openapi: 3.0.3 info: title: OnetSolutions API version: v1 (v1) description: > ## Overview The OnetSolutions API provides programmatic access to manage your cloud infrastructure, domains, and web hosting services. ## Authentication All API requests require authentication using one of the following methods: - **JWT Token**: Obtain a token via login endpoints and include it in the `Authorization: Bearer ` header - **API Key**: Generate an API key from your account settings and use it as `Authorization: Bearer sk-onetsolutions-...` ## Rate Limiting API requests are rate-limited to ensure fair usage: - **Standard**: 1000 requests per minute - **Burst**: 100 requests per second ## Pagination List endpoints return paginated results. Use `page` and `page_size` query parameters. ## Error Handling The API uses standard HTTP status codes: - `200` Success - `201` Created - `400` Bad Request - `401` Unauthorized - `403` Forbidden - `404` Not Found - `429` Too Many Requests servers: - url: https://api.onetsolutions.net description: Production security: [] tags: - name: Authentication description: >- Login, passwordless authentication, MFA, OAuth providers, and token management. - name: Organizations description: >- Organization management, members, roles, modules, audit logs, and notification settings. - name: Projects description: Project management, team members, and project-scoped resources. - name: Compute description: >- Cloud instances, volumes, snapshots, backups, VPCs, firewalls, SSH keys, uptime monitors, and instance tasks. - name: Billing description: >- Shopping cart, orders, invoices, payments, payment methods, gateways, promo codes, and balance management. - name: Domains description: >- Domain availability, registration, transfers, DNS zones, DNS records, and TLD information. - name: Web Hosting description: >- cPanel-based web hosting, emails, databases, subdomains, FTP accounts, addon domains, and SSL certificates. paths: /v1/organizations/{organization_id}/projects/{project_id}/compute/instances/{instance_id}/backup-trial: post: tags: - v1 summary: Start the offered backup month description: >- Queues the activation of the daily backup configurable option on the WHMCS service backing this instance. The worker adds the option price for the service's own billing cycle to its stored recurring amount — the catalogue is never recomputed, so negotiated prices are preserved — then calls ModuleChangePackage so SoPanel turns backups on, and credits one month of the option to the client. Refused when the instance is not active, backups are already on, the size has no sellable option, or a trial is already open. operationId: backup_trial_activate parameters: - in: path name: instance_id schema: type: string format: uuid required: true - in: path name: organization_id schema: type: string format: uuid required: true - in: path name: project_id schema: type: string format: uuid required: true responses: '202': content: application/json: schema: $ref: '#/components/schemas/BackupTrial' description: '' security: - BearerAuth: [] components: schemas: BackupTrial: type: object properties: id: type: string format: uuid readOnly: true instance: type: string format: uuid readOnly: true instance_name: type: string readOnly: true whmcs_service_id: type: integer readOnly: true whmcs_order_id: type: integer readOnly: true nullable: true whmcs_invoice_id: type: integer readOnly: true nullable: true status: enum: - pending - active - converted - cancelled - failed type: string description: |- * `pending` - Pending * `active` - Active * `converted` - Converted * `cancelled` - Cancelled * `failed` - Failed x-spec-enum-id: 3bde78d1f0321c63 readOnly: true source: enum: - staff - self_service type: string description: |- * `staff` - Staff * `self_service` - Self service x-spec-enum-id: bfc57e607aa8980c readOnly: true trial: type: boolean readOnly: true cycle: type: string readOnly: true monthly_price: type: string pattern: ^-?\d{0,8}(?:\.\d{0,2})?$ readOnly: true cycle_price: type: string pattern: ^-?\d{0,8}(?:\.\d{0,2})?$ readOnly: true credited: type: string pattern: ^-?\d{0,8}(?:\.\d{0,2})?$ readOnly: true started_at: type: string format: date-time readOnly: true nullable: true ends_at: type: string format: date-time readOnly: true nullable: true reminded_at: type: string format: date-time readOnly: true nullable: true resolved_at: type: string format: date-time readOnly: true nullable: true failure_reason: type: string readOnly: true created: type: string format: date-time readOnly: true required: - created - credited - cycle - cycle_price - ends_at - failure_reason - id - instance - instance_name - monthly_price - reminded_at - resolved_at - source - started_at - status - trial - whmcs_invoice_id - whmcs_order_id - whmcs_service_id securitySchemes: BearerAuth: type: http scheme: bearer bearerFormat: JWT or API Key description: >- Use `Authorization: Bearer ` header. Token can be a JWT token or an API key (format: `sk-onetsolutions-...`). ````