> ## Documentation Index
> Fetch the complete documentation index at: https://docs.quickbads.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Licence key

> Add your QuickBADS licence key, renew it, and see what happens when it ends.

QuickBADS needs a licence key. The key comes by email when you subscribe at [quickbads.com](https://quickbads.com).

The key is checked on your computer. Nothing about your model is sent anywhere.

## Add your key

<Steps>
  <Step title="Copy the key from your email">
    The key is one long line that starts with `QB1.`. Copy all of it. Line breaks or spaces that your email app adds don't matter.
  </Step>

  <Step title="Open the licence window">
    In Revit, go to the **QuickBADS** tab and click **Licence**.
  </Step>

  <Step title="Paste and save">
    Click in the box under **Paste your key**, press **Ctrl + V**, then click **Save key**.
    QuickBADS shows: *Licence saved. Licensed to [you@firm.com](mailto:you@firm.com) · 3 seats · valid until 25 Nov 2026.*
  </Step>
</Steps>

The **Licence** window also shows the status, who the key is for, the number of seats, and when it ends.

<Note>
  The key is saved in `%AppData%\QuickBADS\licence.txt` for your Windows user. Updating or reinstalling QuickBADS keeps it.
</Note>

## Renewals

Each month, after your payment goes through, you get an email with a new key. Paste it under **QuickBADS → Licence** the same way. Each key keeps working for 14 days after the period you paid for.

In the last 7 days QuickBADS reminds you once per Revit session, the first time you click a button: *Your QuickBADS licence ends on 25 Nov 2026 (in 5 days).*

## When there's no key, or it has ended

These buttons stop working and explain why:

* **Place BADS**
* **Auto Update** (fills stop following your changes)
* **Go To Schedule**
* **Clear Fills ▾ → Clear Apartment**

These always work:

* **Licence**
* **Clear Fills ▾ → Clear Whole Plan**: you can always remove QuickBADS fills from your model.
* **Graphics** and **Settings** (your changes are saved; the plan redraws once you have a key)
* **Report Bug**

Fills already in your model stay where they are. Paste a new key and click **Place BADS** to bring them up to date.

## Messages

| Message | What to do |
| - | - |
| *QuickBADS needs a licence key to check apartments.* | Paste your key under **QuickBADS → Licence**. No key yet? Subscribe at [quickbads.com](https://quickbads.com). |
| *That key isn't valid.* | Copy the whole key from your email (it starts with `QB1.`) and paste it again. |
| *Your QuickBADS licence ended on …* | Paste the key from your latest renewal email, or renew at [quickbads.com](https://quickbads.com). |
| *That key ended on …, so it wasn't saved.* | You pasted an old key. Use the one from your most recent email. |

## Remove the key

Open **QuickBADS → Licence** and click **Remove key**. For example, do this before you hand the computer to someone else.


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