API errors
iccid_required
The swap's new SIM is a physical SIM, so the request must name it with `iccid`.
400application/problem+jsonWhat it means
The target eSIM variant is a physical SIM the customer already holds, so the API cannot pick one; the request has to say which.
400 · application/problem+json
How to handle it
Resend the swap with the
iccidof the SIM the customer holds.