> ## Documentation Index > Fetch the complete documentation index at: https://chargecloud.dev/llms.txt > Use this file to discover all available pages before exploring further. # Meters / Update > Updates a meter. Required permission: asset:meters:update. Available contexts: API Key, User. ## OpenAPI ````yaml /api/core-api/crmiapi.json put /api/v1/assets/meters/{uuid} openapi: 3.2.0 info: title: chargecloud - Core API summary: chargecloud Core API. All around CRM, Asset Management and more. version: 1.141.0 description: chargecloud Core API. All around CRM, Asset Management and more. servers: - url: https://api.chargecloud.dev description: Production - chargecloud Core API - url: https://demo.chargecloud.de description: Sandbox/Dev - chargecloud Core API security: [] paths: /api/v1/assets/meters/{uuid}: put: tags: - Meters summary: Meters / Update description: >- Updates a meter. Required permission: asset:meters:update. Available contexts: API Key, User. operationId: /api/v1/assets/meters/{uuid}_PUT parameters: - name: uuid in: path description: UUID of the Meter required: true schema: type: string pattern: >- ^[a-f0-9]{8}\-[a-f0-9]{4}\-4[a-f0-9]{3}\-[89ab][a-f0-9]{3}\-[a-f0-9]{12}$ description: UUID of the Meter - name: Accept-Language in: header description: BCP 47 language tag for content negotiation (e.g. en, de-DE). required: false schema: type: string description: BCP 47 language tag for content negotiation (e.g. en, de-DE). example: en requestBody: description: >- Updates a meter. Required permission: asset:meters:update. Available contexts: API Key, User. content: application/json: schema: type: object required: - chargepoint_uuid - public_key properties: installation_date: type: string format: date pattern: ^\d{4}-\d{2}-\d{2}$ description: Date the meter was physically installed. market_partner: type: string maxLength: 100 description: >- Name of the energy market partner responsible for the meter, typically the grid operator or metering service provider. Used in EDI/GPKE communication. chargepoint_uuid: type: string pattern: >- ^[a-f0-9]{8}\-[a-f0-9]{4}\-4[a-f0-9]{3}\-[89ab][a-f0-9]{3}\-[a-f0-9]{12}$ description: >- The UUID of the charge point this meter is assigned to. Each active meter must be linked to exactly one chargepoint. Only one active meter per charge point is allowed at a time. meter_type: type: string description: >- Human-readable meter type label (e.g. "Smart Meter mit Fernuebertragung"). Determines how meter readings are processed and whether they qualify for legally compliant billing. meter_serial_number: type: string maxLength: 70 description: >- Serial number reported by the physical meter (counter number). meter_point: type: string maxLength: 50 description: >- Metering point identifier (Marktlokations- or Messlokations-ID). comment: type: string maxLength: 255 description: Free-form internal note, visible only to back-office users. active: type: boolean default: false description: >- Whether the meter is in service. Inactive meters are excluded from billing. Only one meter per charging point can be active at a time. internal_counter: type: boolean default: false description: >- Whether this meter is an internal software counter rather than a physical hardware meter. Internal counters are used when no certified physical meter is present. credit_counter: type: boolean default: false description: >- Whether this meter is used as a credit counter, tracking energy consumed against a prepaid or credit-based balance. sum_counter: type: boolean default: false description: >- Whether this meter aggregates readings across multiple charging points or sessions. is_public: type: boolean default: false description: >- Whether this meter is physically visible and accessible to end customers at the charging station. public_key: type: string maxLength: 255 description: >- Public key used to verify calibration-law-relevant meter value signatures. serial_number: type: string maxLength: 16 description: >- Internal asset serial number of the meter hardware, used for inventory and spare-parts management. May differ from meter_serial_number, which is the official calibration-relevant identifier. article_number: type: string maxLength: 16 description: Manufacturer article (model) number. manufacturer: type: string maxLength: 32 description: Name of the meter manufacturer. required: true responses: '200': headers: Content-Language: description: The locale of the response content (BCP 47 language tag). required: false schema: type: string example: en content: application/json: schema: type: object required: - meter properties: meter: type: object properties: uuid: type: string pattern: >- ^[a-f0-9]{8}\-[a-f0-9]{4}\-4[a-f0-9]{3}\-[89ab][a-f0-9]{3}\-[a-f0-9]{12}$ description: >- The unique identifier of the meter, automatically assigned by the system upon creation. Use this UUID to retrieve or reference the meter in subsequent API calls. created_at: type: string format: date pattern: ^\d{4}-\d{2}-\d{2}$ description: Creation timestamp of the meter record. updated_at: type: string format: date pattern: ^\d{4}-\d{2}-\d{2}$ description: Last-write timestamp of the meter record. modification_date: type: string format: date pattern: ^\d{4}-\d{2}-\d{2}$ description: >- Last modification timestamp, maintained by the database. location_uuid: type: string pattern: >- ^[a-f0-9]{8}\-[a-f0-9]{4}\-4[a-f0-9]{3}\-[89ab][a-f0-9]{3}\-[a-f0-9]{12}$ description: >- The UUID of the location this meter is associated with. Returned for context and cross-referencing. station_uuid: type: string pattern: >- ^[a-f0-9]{8}\-[a-f0-9]{4}\-4[a-f0-9]{3}\-[89ab][a-f0-9]{3}\-[a-f0-9]{12}$ description: >- The UUID of the charging station this meter is physically installed in. Returned for context. installation_date: type: string format: date pattern: ^\d{4}-\d{2}-\d{2}$ description: Date the meter was physically installed. market_partner: type: string maxLength: 100 description: >- Name of the energy market partner responsible for the meter, typically the grid operator or metering service provider. Used in EDI/GPKE communication. chargepoint_uuid: type: string pattern: >- ^[a-f0-9]{8}\-[a-f0-9]{4}\-4[a-f0-9]{3}\-[89ab][a-f0-9]{3}\-[a-f0-9]{12}$ description: >- The UUID of the charge point this meter is assigned to. Each active meter must be linked to exactly one chargepoint. Only one active meter per charge point is allowed at a time. meter_type: type: string description: >- Human-readable meter type label (e.g. "Smart Meter mit Fernuebertragung"). Determines how meter readings are processed and whether they qualify for legally compliant billing. meter_serial_number: type: string maxLength: 70 description: >- Serial number reported by the physical meter (counter number). meter_point: type: string maxLength: 50 description: >- Metering point identifier (Marktlokations- or Messlokations-ID). comment: type: string maxLength: 255 description: >- Free-form internal note, visible only to back-office users. active: type: boolean default: false description: >- Whether the meter is in service. Inactive meters are excluded from billing. Only one meter per charging point can be active at a time. internal_counter: type: boolean default: false description: >- Whether this meter is an internal software counter rather than a physical hardware meter. Internal counters are used when no certified physical meter is present. credit_counter: type: boolean default: false description: >- Whether this meter is used as a credit counter, tracking energy consumed against a prepaid or credit-based balance. sum_counter: type: boolean default: false description: >- Whether this meter aggregates readings across multiple charging points or sessions. is_public: type: boolean default: false description: >- Whether this meter is physically visible and accessible to end customers at the charging station. public_key: type: string maxLength: 255 description: >- Public key used to verify calibration-law-relevant meter value signatures. serial_number: type: string maxLength: 16 description: >- Internal asset serial number of the meter hardware, used for inventory and spare-parts management. May differ from meter_serial_number, which is the official calibration-relevant identifier. article_number: type: string maxLength: 16 description: Manufacturer article (model) number. manufacturer: type: string maxLength: 32 description: Name of the meter manufacturer. required: - uuid - created_at - updated_at - modification_date - chargepoint_uuid - public_key description: >- The meter record with its location, station and charge point assignment and its counter readings. description: Updated meter. '401': headers: Content-Language: description: The locale of the response content (BCP 47 language tag). required: false schema: type: string example: en content: application/json: schema: type: object required: - error properties: error: type: string description: Error message description: Unauthorized '403': headers: Content-Language: description: The locale of the response content (BCP 47 language tag). required: false schema: type: string example: en content: application/json: schema: type: object required: - error properties: error: type: string description: Error message description: Forbidden '404': headers: Content-Language: description: The locale of the response content (BCP 47 language tag). required: false schema: type: string example: en content: application/json: schema: type: object required: - error properties: error: type: string description: Error message description: Not found '405': headers: Content-Language: description: The locale of the response content (BCP 47 language tag). required: false schema: type: string example: en content: application/json: schema: type: object required: - error properties: error: type: string description: Error message description: Method not allowed '422': headers: Content-Language: description: The locale of the response content (BCP 47 language tag). required: false schema: type: string example: en content: application/json: schema: type: object required: - errors properties: errors: type: array items: type: object properties: errorKey: type: string description: A key identifying the error message: type: string description: The error message parameter: type: string description: The parameter that caused the error, if any required: - errorKey - message - parameter description: Error description: List of errors description: Request validation failed '500': headers: Content-Language: description: The locale of the response content (BCP 47 language tag). required: false schema: type: string example: en content: application/json: schema: type: object required: - error properties: error: type: string description: Error message description: Internal server error security: - bearer: - asset:meters components: securitySchemes: bearer: type: http description: OAuth2 Bearer Authorization scheme: bearer bearerFormat: JWT ```` ## Related topics - [Controllers / Update](https://chargecloud.dev/api-reference/controllers/controllers-update.md) - [Meters / Read](https://chargecloud.dev/api-reference/meters/meters-read.md) - [Meters / Create](https://chargecloud.dev/api-reference/meters/meters-create.md) This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.