Change an account's collection status from `NORMAL` to `OVERDUE` or vice-versa. `OVERDUE` accounts cannot do cash-outs (purchases, cash withdrawals, and so on). When you try to change an account's collection status to `OVERDUE`, the Pismo platform first verifies that `OpenDueDate` is not `NULL` and that it is a date in the past. If this test fails, it returns `400 Bad request`. No validations are done when you change the collection status to `NORMAL`. Changing the account collection status does not affect the [account status](doc:managing-account-statuses#account-statuses-common-to-all-accounts). So, for example, changing the account collection status from `NORMAL` to `OVERDUE` does not cause the account status to change to `BLOCKED`, even though it does prevent cash-outs by blocking the ledger itself. When you change the account collection status from `OVERDUE` to `NORMAL`, the ledger is unblocked and the account is again able to do cash-outs, assuming the account status is not `BLOCKED`. The two fields are not linked.

Account status	Collection status	Result
`NORMAL`	`NORMAL`	Account is usable.
`NORMAL`	`BLOCKED`	Account is not usable.
`OVERDUE`	`NORMAL`	Account is not usable.
`OVERDUE`	`BLOCKED`	Account is not usable.

For more information about the account collection status, refer to the [Credit liquidation](doc:credit-liquidation) guide. **Note:** This endpoint requires an account token - an access token encoded with a Pismo account ID. Tokens can expire quickly, which can result in a **401 Unauthorized** message.