Create a new client.
A client must belong to a single organization.
The organizationId field is required upon creation (POST) and cannot be modified later.
Unique code for this client. Used for identifying the client in invoices export if externalCode is null.
Used for identifying the client in invoices exports. Is not subject to unicity.
Unique identifier of the user managing this client.
Unique identifier of the organization this client belongs to.
Created