When issuing an OpenAPI Key, can I register one Integator and one self-development(direct Input) at the same time?

Only one key for OpenAPI can be issued per seller ID (company code), and one Integrator and one self-developed key (direct input) cannot be registered at the same time.
You can select and register only one of the linked companies and self-developed (direct input: up to 10 IP addresses can be entered).
In the case of linked company information and self-development modifications, only 10 modifications are possible per week, so please refer to the issuance guide link below.

[API Key Issuance Guide]