API errors
iccid_not_available
The SIM named by `iccid` cannot be used for this swap.
404application/problem+jsonWhat it means
The ICCID is unknown, belongs to a different eSIM variant than the swap's target, or the SIM is already in use.
404 · application/problem+json
How to handle it
Check the ICCID against the SIM the customer holds, and that it matches the swap's target variant.