# Check if customer exists

Endpoint: HEAD /customers
Version: 1.41
Security: bearerAuth

## Query parameters:

  - `contractOwnerId` (string)
    Filter by contract owner
    Example: "0"

  - `customerName` (string)
    Filter by customer name
    Example: "xyz | in:x,y | like:xyz"

  - `customerType` (string)
    Filter by customer type
    Example: "xyz | in:x,y | like:xyz"

  - `customerAccountNumber` (string)
    Filter by customer account number
    Example: "xyz | in:x,y | like:xyz"

  - `billingCycleId` (string)
    Filter by billing cycle
    Example: "0"

  - `startDate` (string)
    Filter by start date
    Example: "yyyy-MM-dd | lt:yyyy-MM-dd | gt:yyyy-MM-dd | gtn:yyyy-MM-dd"

  - `endDate` (string)
    Filter by end date
    Example: "yyyy-MM-dd | lt:yyyy-MM-dd | gt:yyyy-MM-dd | gtn:yyyy-MM-dd"


## Response 200 fields

## Response 400 fields

## Response 401 fields

## Response 403 fields

## Response 404 fields