# Subscription iteration types Building with an AI agent? Start at https://docs.payme.io/agents.md Values of `sub_iteration_type` in [Create a subscription](/payments/subscriptions/post-generate-subscription) and in subscription responses. | ID | Interval | Notes | |---|---|---| | `1` | Daily | A failed charge isn't retried: the subscription is canceled. | | `2` | Weekly | | | `3` | Monthly | The start day must be between 1 and 28 (error `375`). | | `4` | Yearly | | | `5` | Quarterly | |