> For the complete documentation index, see [llms.txt](https://docs.coherent.global/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.coherent.global/control/processes/locking-and-protecting-the-workbook.md).

# Locking & Protecting the Workbook

Lock and protection are applied automatically during creation, linking, and reset. You can also re-apply them manually.

#### Lock Types <a href="#process-locktypes" id="process-locktypes"></a>

| Lock Type    | Cells that get locked                                         |
| ------------ | ------------------------------------------------------------- |
| `non_input`  | Everything **except** the `INPUTS` named range.               |
| `non_static` | Everything **except** constant (non-formula) cells.           |
| `sheet`      | The used range on each visible, unprotected sheet.            |
| `range`      | A specific named range or cell address defined in the action. |

#### Protection <a href="#process-protection" id="process-protection"></a>

* Workbook structure is protected (prevents sheet add/delete/rename).
* Each sheet is protected individually, with configurable options (allow sort, format cells, etc.).
* An optional password is stored encrypted in the process definition.