> ## Documentation Index > Fetch the complete documentation index at: https://docs.arcuserp.com/llms.txt > Use this file to discover all available pages before exploring further. # Resume an asset's depreciation > Moves a suspended asset back to active status so its scheduled depreciation posts can resume. Only an asset currently suspended can be resumed; any other status returns a 422. ## OpenAPI ````yaml /openapi.yaml post /fixed_assets/{id}/resume_depreciation openapi: 3.1.0 info: title: Arcus ERP Public API version: 1.0.0 description: > Arcus ERP public REST API. Designed for external integrations and data migration. **Authentication.** Bearer token (API key) via the `Authorization` header. Format: `Authorization: Bearer ark_live_ent__` (or `ark_test_*` for sandbox). API keys are issued per-entity in **Settings > Developers > API Keys**. **Entity scoping.** The entity is encoded in the API key prefix; routes are flat (e.g. `/v1/accounts`, `/v1/orders`, `/v1/products`). A small set of platform endpoints (migration, reconciliation, events, webhook endpoints, API keys) use the `/v1/entities/{entity_id}/...` form -- those are noted in their tags. **Key capabilities.** - Related-resource hydration via `?expand[]=` (see `x-arcus-expand` on each resource). - Cursor-based pagination (`starting_after` / `ending_before` / `limit`). - Idempotency via the `Idempotency-Key` header. - Webhook events for asynchronous notification. - Conditional requests / ETag for cache validation. **Changelog.** Entries are dated and name every published contract whose MEANING moved, not only the ones whose field names changed. The narrative version of the same entries, written for integrators, is published at https://arcuserp.mintlify.app/changelog. **2026-09-22 (planned 2026-09-21), REORDER-BUYER-TRUTH: demand changed what it MEANS on three published contracts, with no field renamed.** An integrator that pins field names sees no breakage and different numbers, which is why this entry exists. - **Demand now counts build consumption.** `demand_avg_per_day` on the public product, kit and inventory-balance objects, and `daily_demand` / `demand_basis` / `net_suggested_qty` on `GET /v1/purchasing/reorder-report`, are composed from fulfilled sales lines PLUS posted `build_consume` inventory draws: each physical decrement of a product counts exactly once. The previous rule adopted an internal-consumption basis only when the sales blend was exactly zero, so a product both sold AND consumed into work orders planned as if the build draws did not exist. Products drawn into work orders move; on one production-shaped dataset five did, the largest from 0.05/day to 14.95/day. - **`demand_basis` now carries four values, not two:** `sales`, `sales_and_builds`, `builds` and `consumption`. A consumer with a two-branch reader (anything that is not `consumption` is `sales`) silently hides the two new ones. - **`current_demand_units` on `GET /v1/inventory/balances/:id` moved, by a second rule.** It counts committed-but-unshipped CUSTOMER demand, and it now counts a kit component's own line rather than its parent kit line, and excludes non-sales documents. On one production dataset 269 of 1,043 balance rows changed, 227 of them downward; the largest single move was 1,941 to 25, on a product whose open PURCHASE order line had been reported as customer demand. Re-baseline anything that alerts or reorders off this field. - `run_rate_30/90/180/365` and `blended_daily` on the same balance object move for the first reason above. - **Added, not changed:** `GET /v1/purchasing/reorder-report` accepts `demand_window` and returns the unit, cover-through and reorder-point-provenance fields documented on that operation; `order_multiple` is accepted and returned on the product-vendor doors. - **Volume note.** The `inventory.low_stock`, `inventory.out_of_stock` and `inventory.back_in_stock` webhook events are population-gated on `on_hand <= reorder_point`, and reorder points move with the demand above, so subscribers should expect a one-time step change in event volume around the release. servers: - url: https://api.arcuserp.com/v1 description: Arcus ERP API (accepts both live `ark_live_*` and test `ark_test_*` keys) - url: https://dev-api.arcuserp.com/v1 description: >- Dev sandbox API (test-only data, accepts `ark_test_*` keys against dev RDS) security: [] paths: /fixed_assets/{id}/resume_depreciation: parameters: - name: id in: path required: true schema: type: string format: uuid post: tags: - Fixed Assets summary: Resume an asset's depreciation description: >- Moves a suspended asset back to active status so its scheduled depreciation posts can resume. Only an asset currently suspended can be resumed; any other status returns a 422. operationId: resumeDepreciation requestBody: required: false content: application/json: schema: type: object properties: reason: type: string responses: '200': description: Asset resumed content: application/json: schema: type: object properties: data: $ref: '#/components/schemas/FixedAsset' '404': $ref: '#/components/responses/Error' '422': description: INVALID_STATE (asset not currently `suspended`) content: application/json: schema: $ref: '#/components/schemas/Error' security: - ApiKeyAuth: - assets:write components: schemas: FixedAsset: type: object description: > A capitalized fixed asset (PP and E) tracked on the entity's books with cost basis, accumulated depreciation, depreciation schedule, and lifecycle state. Lifecycle: `pending_service` (created, not yet placed in service), `active` (depreciating), `suspended` (depreciation halted), `fully_depreciated` (accumulated depreciation equals depreciable base), `disposed` (sold/scrapped/donated/traded_in). Scope: assets:read / assets:write. Rule 23 SSOT: `cost_basis` is written only by createFixedAsset and revalueAsset; `accumulated_depreciation` is written only by postDepreciation, disposeAsset, impairAsset, and revalueAsset. properties: id: type: string format: uuid readOnly: true entity_id: type: string format: uuid readOnly: true asset_code: type: string description: >- Stable per-entity code (auto-generated via canonical getNextNumber when omitted). name: type: string description: type: string nullable: true serial_number: type: string nullable: true status: type: string enum: - pending_service - active - suspended - fully_depreciated - disposed category_id: type: string format: uuid nullable: true location_id: type: string format: uuid nullable: true vendor_id: type: string format: uuid nullable: true po_id: type: string format: uuid nullable: true vendor_bill_id: type: string format: uuid nullable: true cost_basis: type: number format: float salvage_value: type: number format: float accumulated_depreciation: type: number format: float readOnly: true tax_accumulated_depreciation: type: number format: float readOnly: true net_book_value: type: number format: float readOnly: true description: cost_basis minus accumulated_depreciation. depreciation_method: type: string enum: - straight_line - declining_balance - double_declining - sum_of_years - units_of_production - macrs - bonus_macrs - section_179 useful_life_months: type: integer macrs_class: type: string nullable: true enum: - three_year - five_year - seven_year - ten_year - fifteen_year - twenty_year - twenty_seven_five_year - thirty_nine_year macrs_convention: type: string nullable: true enum: - half_year - mid_quarter - mid_month placed_in_service_date: type: string format: date nullable: true acquisition_date: type: string format: date nullable: true disposal_date: type: string format: date nullable: true readOnly: true disposal_method: type: string nullable: true enum: - sold - scrapped - donated - traded_in readOnly: true disposal_amount: type: number format: float nullable: true readOnly: true gain_loss_amount: type: number format: float nullable: true readOnly: true gl_asset_account_id: type: string format: uuid gl_accum_depr_account_id: type: string format: uuid gl_depr_expense_account_id: type: string format: uuid warranty_expiration: type: string format: date nullable: true warranty_provider: type: string nullable: true warranty_terms: type: string nullable: true insurance_policy: type: string nullable: true insurance_expiration: type: string format: date nullable: true notes: type: string nullable: true metadata: type: object nullable: true created_at: type: string format: date-time readOnly: true updated_at: type: string format: date-time readOnly: true Error: description: | Alias for ErrorEnvelope. Canonical error response shape used by all API endpoints. Refer to ErrorEnvelope for the full field definition. allOf: - $ref: '#/components/schemas/ErrorEnvelope' ErrorEnvelope: type: object description: | Canonical error response envelope. All API errors use this shape. required: - error - code properties: error: type: string description: Machine-readable error key example: not_found code: type: string description: Machine-readable error code (often same as error) example: not_found type: type: string enum: - validation_error - permission_error - not_found - conflict - rate_limit - internal - expand_error - not_implemented example: not_found hint: type: string description: Human-readable one-sentence explanation (English) example: >- The requested order does not exist or does not belong to this entity. param: type: string description: The parameter that caused the error, if applicable example: expand[0] required: type: string description: The scope required (only on insufficient_scope errors) example: accounts:read request_id: type: string description: >- Unique request ID for support tracing (maps to CloudWatch log stream) example: req_abc123 responses: Error: description: Error response (400/401/403/404/409/422/429/500) content: application/json: schema: $ref: '#/components/schemas/ErrorEnvelope' securitySchemes: ApiKeyAuth: type: http scheme: bearer description: | API key issued per entity via Settings > Developers > API Keys. Each key carries scopes (e.g. orders:read, products:write). Bearer token format: Authorization: Bearer ark_live_ent__ Test keys use ark_test_ent__. Both are issued per entity via Settings > Developers > API Keys. ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.