# Validate customer number | Copenhagen Truck Wash API

### Copenhagen Truck Wash API Help

# Validate customer number

This endpoint documentation is generated directly from `openapi.yaml`.

## Endpoint

POST /guest/validation/customer-number

## Operation

Operation ID: `validateCustomerNumber`

Check if a customer number is valid and exists

## Authentication

No authentication required.

## Request Body

Required: yes.

Content type: `application/json`

{ "properties": { "customer_number": { "type": "integer" } }, "required": [ "customer_number" ], "type": "object" }

## Responses

Status | Description | Content Types
--- | --- | ---
200 | Customer number validation successful | application/json
400 |  |

Schema for response `200` (`application/json`):

{}
17 March 2026