Bulk vs Group — Bulk actions are one-time operations on an explicit list of SIM IDs. Nothing persists. For ongoing policy that applies to current and future SIMs, use Groups. Bulk Actions
All actions are async — submit a list of SIM IDs, get back an action ID, poll for status.
Track progress via List Bulk SIM Card Actions. Per-SIM results are included — some may succeed while others fail.
For bulk registration, validate codes first with the validation endpoint. This dry-run catches typos and invalid codes before you commit to a large batch.
