# Add a single client to an ERPHubConnection

Endpoint: POST /api/v1/integrations/connections/{connectionId}/clients
Version: 1
Security: , , , 

## Path parameters:

  - `connectionId` (string, required)
    The connection id

## Request fields (application/json):

  - `name` (string, required)
    The name of the client to add, must be unique for the connection.

  - `organizationNumber` (string, required)
    The organization number of the client to add, must be unique for the connection.

  - `currency` (string,null)
    The currency of the client to add, must be a valid ISO 4217 currency code.
Will be made required in future versions.

## Response 200 fields (application/json):

  - `success` (boolean, required)
    Indicates whether the request was successful

  - `error` (string,null)
    Error message, if the request was not successful

  - `client` (object)
    Represents a client.

  - `client.clientId` (string, required)
    The client ID.

  - `client.name` (string, required)
    The name of the client.

  - `client.erpSystemType` (string)
    Enum: "Unknown", "VismaBusinessNXT", "VismaNet", "ApiIntegration"

  - `client.externalCompanyId` (string,null)
    The external company ID.

  - `client.organizationNumber` (string,null)
    The organization number.

  - `client.accountingPeriodDeviation` (integer,null)
    The accounting period deviation.

  - `client.currency` (string, required)
    Currency code of the client in ISO 4217. E.g. "USD", "EUR", "SEK".

## Response 400 fields (application/json):

  - `success` (boolean, required)
    Indicates whether the request was successful

  - `error` (string,null)
    Error message, if the request was not successful

  - `client` (object)
    Represents a client.

  - `client.clientId` (string, required)
    The client ID.

  - `client.name` (string, required)
    The name of the client.

  - `client.erpSystemType` (string)
    Enum: "Unknown", "VismaBusinessNXT", "VismaNet", "ApiIntegration"

  - `client.externalCompanyId` (string,null)
    The external company ID.

  - `client.organizationNumber` (string,null)
    The organization number.

  - `client.accountingPeriodDeviation` (integer,null)
    The accounting period deviation.

  - `client.currency` (string, required)
    Currency code of the client in ISO 4217. E.g. "USD", "EUR", "SEK".

## Response 403 fields (application/json):

  - `type` (string,null)

  - `title` (string,null)

  - `status` (integer,null)

  - `detail` (string,null)

  - `instance` (string,null)