> For the complete documentation index, see [llms.txt](https://docs.stoik.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.stoik.io/msp/account-management/buying-licenses.md).
# Buying licenses
## Understanding license pricing
License pricing is based on the **commitment volume** validated with your account manager.
The price grid is therefore validated before you buy licenses and is visible in your space at any time.
Pricing units by product are as follows:
* MDR: number of endpoints, one license per device
* Email Security: number of mailboxes, one license per mailbox
Prices shown in the platform correspond to a monthly cost.
By default, licenses are charged at the price negotiated for your commitment volume. Two other pricing modes exist: **NFR** (Not For Resale), for licenses you buy for your own use, and **POC** (Proof Of Concept), to test a product before selling it.
To learn more about these modes, contact your account manager.
## Understanding license price calculation
We apply pro rata to calculate the price of a license. The formula is as follows:
```
Pro Rata = (Annual Price incl. tax / 12) x (Months + (Days / Days in the month)
```
With:
* Annual price excl. tax = the total price over 12 months incl. tax
* Months = the number of full months in the pro-rated period
* Days = the number of extra days beyond full months
* Days in the month = number of days in the current month
## Buying licenses
Once your client's Stoïk Protect space is linked, you can activate products and buy licenses.
{% stepper %}
{% step %}
### Activate a product
In your client's account, click `Activate` in the `Status` column on each product row.
{% endstep %}
{% step %}
### Choose the number of licenses
For paid products, select the number of licenses you want to buy.
{% endstep %}
{% step %}
### Confirm the purchase
Click `Purchase`.
{% endstep %}
{% step %}
### Purchase confirmation
The number of licenses purchased appears in the `Purchases` column.
{% endstep %}
{% endstepper %}
## Removing licenses
This action is not available in the platform yet.
## Cancelling a product
This action is not available in the platform yet.
## MDR options on existing licenses
If you add options when buying additional MDR licenses, the selected options apply to **all existing and new licenses.**
## Selling to clients outside of your country
This is not possible yet.
---
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