Unsupported recurrence rule

Status

422

Retryable

no

Type

https://fastpad.ai/errors/unsupported-recurrence

What it means

The rule is valid RFC 5545 and Fastpad does not support that part of it. Supported: FREQ=DAILY|WEEKLY|MONTHLY|YEARLY, INTERVAL, BYDAY (weekly only), COUNT or UNTIL, EXDATE, RDATE, and single-instance overrides. Everything else — BYSETPOS, BYMONTHDAY, BYYEARDAY, BYWEEKNO, WKST, nested BY parts — is refused.

What to do

Express the series with the supported parts, or create the instances you need as separate events.

Why it works this way

Not validation-failed, because nothing about the request was malformed — the limit is this product's, not the format's. An agent told "validation failed" rewrites the rule in another valid form and fails again; this says which forms will work.