# UnexpectedTimepoint (/docs/errors/chain/UnexpectedTimepoint)

A timepoint was supplied but no multisig operation is underway for this call hash; the first approval must open the operation with no timepoint. Pass `maybe_timepoint: None` on the opening call, or verify the call hash matches an existing `Multisigs` entry.

Declared by the `Multisig` pallet; it classifies to the semantic code [`invalid_argument`](/docs/errors/invalid-argument).

## Remediation [#remediation]

Check the argument values against the operation schema

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