> ## Documentation Index > Fetch the complete documentation index at: https://docs-pos.solya.app/llms.txt > Use this file to discover all available pages before exploring further. # Change a rule's threshold, mode, perimeter or switch > Changes what the merchant owns: the threshold, the enforcement mode, when it fires, its per-subject scopes, its priority and its switch. It CANNOT repoint the rule at another measurement — that would be a rule builder, and the catalogue is closed on purpose. Sending `scopes` REPLACES the whole list, so read the rule first. `expectedVersion` is required and never defaulted: a stale write is refused with 409 rather than silently overwriting the administrator who saved thirty seconds earlier. ## OpenAPI ````yaml /openapi.json put /v1/rules/{ruleId} openapi: 3.0.3 info: title: Solya POS API version: 1.0.0 description: >- The Solya POS backend HTTP surface. Every documented operation is agent-ready: it carries an `operationId`, an agent-facing `description`, the `pos.*` scopes it enforces (`x-required-permissions`) and an `x-agent-tier`. Success responses return the payload as raw JSON; failures return the `ErrorResponse` envelope (`{ error: { code, message, statusCode } }`). servers: - url: / description: The backend, relative to its deployed origin. security: [] paths: /v1/rules/{ruleId}: put: tags: - Settings summary: Change a rule's threshold, mode, perimeter or switch description: >- Changes what the merchant owns: the threshold, the enforcement mode, when it fires, its per-subject scopes, its priority and its switch. It CANNOT repoint the rule at another measurement — that would be a rule builder, and the catalogue is closed on purpose. Sending `scopes` REPLACES the whole list, so read the rule first. `expectedVersion` is required and never defaulted: a stale write is refused with 409 rather than silently overwriting the administrator who saved thirty seconds earlier. operationId: updateRule parameters: - schema: type: string minLength: 1 in: path name: ruleId required: true description: The rule id, e.g. `rule-exchange-ratio`. requestBody: required: true content: application/json: schema: type: object properties: expectedVersion: type: integer minimum: 0 exclusiveMinimum: true maximum: 9007199254740991 name: type: string minLength: 1 maxLength: 255 description: nullable: true type: string maxLength: 2000 thresholdValue: type: number enforcementMode: type: string enum: - BLOCK - WARN - LOG checkLevel: type: string enum: - SHOP - BRAND - PRODUCT - VARIANT - INVENTORY_ITEM - PLAN - PLAN_ITEM evaluationPoints: minItems: 1 type: array items: type: string enum: - PRE_PLAN_ITEM_ADD - PRE_PLAN_VALIDATE - RECOMMENDATION_GENERATION - WORKFLOW_EXECUTION - MANUAL_CHECK category: type: string enum: - CAPACITY - ASSORTMENT - ORDERING - TRANSFER - PRICING - DISTRIBUTION - COMPLIANCE scopes: type: array items: type: object properties: position: type: integer minimum: 0 maximum: 9007199254740991 criteria: type: array items: oneOf: - type: object properties: kind: type: string enum: - TAG tagId: type: string minLength: 1 required: - kind - tagId - type: object properties: kind: type: string enum: - ENTITY entityType: type: string enum: - PRODUCT - BRAND - VARIANT - INVENTORY_ITEM - SUPPLIER - FAMILY entityId: type: string minLength: 1 required: - kind - entityType - entityId thresholdValue: type: number required: - position - criteria - thresholdValue active: type: boolean priority: type: integer minimum: -9007199254740991 maximum: 9007199254740991 required: - expectedVersion example: expectedVersion: 1 thresholdValue: 120 enforcementMode: BLOCK scopes: - position: 0 criteria: - kind: ENTITY entityType: SUPPLIER entityId: supplier-sportswear thresholdValue: 130 responses: '200': description: The rule as it now stands, at its new version. content: application/json: schema: allOf: - type: object properties: id: type: string minLength: 1 name: type: string minLength: 1 maxLength: 255 description: nullable: true type: string maxLength: 2000 category: type: string enum: - CAPACITY - ASSORTMENT - ORDERING - TRANSFER - PRICING - DISTRIBUTION - COMPLIANCE condition: type: object properties: contextType: type: string minLength: 1 contextParams: type: object additionalProperties: anyOf: - type: string - type: number - type: boolean operator: type: string enum: - LOWER_THAN - LOWER_OR_EQUAL - GREATER_THAN - GREATER_OR_EQUAL - EQUAL - NOT_EQUAL thresholdValue: type: number required: - contextType - contextParams - operator - thresholdValue additionalProperties: false enforcementMode: type: string enum: - BLOCK - WARN - LOG checkLevel: type: string enum: - SHOP - BRAND - PRODUCT - VARIANT - INVENTORY_ITEM - PLAN - PLAN_ITEM evaluationPoints: type: array items: type: string enum: - PRE_PLAN_ITEM_ADD - PRE_PLAN_VALIDATE - RECOMMENDATION_GENERATION - WORKFLOW_EXECUTION - MANUAL_CHECK actionFamily: nullable: true type: string enum: - RESTOCK_PLAN - REBALANCE_PLAN - MARKDOWN_PLAN - PRE_SEASON_PLAN - SUPPLIER_RETURN_PLAN - SUPPLIER_EXCHANGE_PLAN - RECOMMENDATION - WORKFLOW scopes: type: array items: type: object properties: position: type: integer minimum: 0 maximum: 9007199254740991 criteria: type: array items: oneOf: - type: object properties: kind: type: string enum: - TAG tagId: type: string minLength: 1 required: - kind - tagId additionalProperties: false - type: object properties: kind: type: string enum: - ENTITY entityType: type: string enum: - PRODUCT - BRAND - VARIANT - INVENTORY_ITEM - SUPPLIER - FAMILY entityId: type: string minLength: 1 required: - kind - entityType - entityId additionalProperties: false thresholdValue: type: number required: - position - criteria - thresholdValue additionalProperties: false active: type: boolean priority: type: integer minimum: -9007199254740991 maximum: 9007199254740991 templateId: nullable: true type: string minLength: 1 phase: nullable: true type: string enum: - SCORING - SIZING - SOURCING - APPROVAL paradigm: type: string enum: - VALIDATION - DECISION_SHAPING origin: type: string enum: - centrale - os payload: nullable: true required: - id - name - description - category - condition - enforcementMode - checkLevel - evaluationPoints - actionFamily - scopes - active - priority - templateId - phase - paradigm - origin - payload additionalProperties: false - type: object properties: version: type: integer minimum: 0 exclusiveMinimum: true maximum: 9007199254740991 required: - version additionalProperties: false description: The rule as it now stands, at its new version. example: id: rule-exchange-ratio name: Ratio de recommande description: >- Sur un échange, recommander au moins 110 % de ce qui est renvoyé. category: COMPLIANCE condition: contextType: EXCHANGE_RECEIVE_RATIO contextParams: {} operator: LOWER_THAN thresholdValue: 110 enforcementMode: BLOCK checkLevel: PLAN evaluationPoints: - PRE_PLAN_VALIDATE actionFamily: SUPPLIER_EXCHANGE_PLAN scopes: - position: 0 criteria: - kind: ENTITY entityType: SUPPLIER entityId: supplier-sportswear thresholdValue: 130 active: true priority: 0 templateId: exchange_reorder_ratio phase: null paradigm: VALIDATION payload: null version: 2 '400': description: >- The request failed schema validation; `error.fieldErrors` lists the fields. content: application/json: schema: $ref: '#/components/schemas/ValidationErrorResponse' '401': description: No valid credential was presented — send a bearer token. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '403': description: The actor is authenticated but lacks the required `pos.*` scope. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '404': description: No resource matches the addressed identifier. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '422': description: The request is well-formed but violates a domain rule. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '500': description: An unexpected server error — safe to retry idempotent requests. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' security: - bearerAuth: [] components: schemas: ValidationErrorResponse: type: object required: - error additionalProperties: false description: >- A `VALIDATION_FAILED` envelope carrying the offending fields in `fieldErrors`. properties: error: type: object required: - code - message - statusCode additionalProperties: false properties: code: type: string enum: - VALIDATION_FAILED message: type: string statusCode: type: integer fieldErrors: type: array description: >- One entry per rejected field: the field path and why it was rejected. items: type: object required: - field - message additionalProperties: false properties: field: type: string description: Dot-path of the offending field. message: type: string description: Why the field was rejected. ErrorResponse: type: object required: - error additionalProperties: false description: The uniform failure envelope every non-2xx response returns. properties: error: type: object required: - code - message - statusCode additionalProperties: false properties: code: type: string enum: - VALIDATION_FAILED - UNAUTHORIZED - FORBIDDEN - NOT_FOUND - CONFLICT - BUSINESS_RULE_VIOLATION - INTERNAL_ERROR description: >- Machine-readable kernel `ResultCode` — branch on this, not on `message`. message: type: string description: >- Human-readable explanation. Safe to surface; never leaks server internals. statusCode: type: integer description: >- The HTTP status, mirrored into the body so a client need not read headers. securitySchemes: bearerAuth: type: http scheme: bearer bearerFormat: JWT description: >- `Authorization: Bearer `. Accepts EITHER a Keycloak access token (scopes-in-token) OR an opaque POS session token; both resolve to the same `pos.*` scope vocabulary the route guards enforce. ````