# FailedToSchedule (/docs/errors/chain/FailedToSchedule)

The scheduler could not place the call into the agenda, typically because the target block's agenda is full or the schedule parameters are unusable. Check `Agenda` at the target block against `MaxScheduledPerBlock` and pick a different block if it is saturated.

Declared by the `Scheduler` pallet; it classifies to the semantic code [`internal`](/docs/errors/internal).

## Remediation [#remediation]

A chain-side invariant failed; nothing to fix client-side — report it if it persists

The same explanation is available in the terminal: `btcli explain FailedToSchedule`.