# invalid_cron

**HTTP status:** 422 (Unprocessable)

**Title:** Invalid cron expression

## Cause

The cron expression could not be read. Use five fields (minute hour day-of-month month day-of-week), for example 0 9 2 * * for the 2nd of each month at 09:00.

## How to fix it

Send a cron with five fields in cron, for example 0 9 2 * * for the 2nd of each month at 09:00.

Set the parameter named below and send the request again.

Parameter: `cron`

Every error carries `requestId` and the `Request-Id` header. Send it when you write to support.

[All error codes](/errors)