This error message is diplayed when the product key has activated Capture One according to the limit of activations (sometimes known as seats) were purchased. The activation structure is as follows:
For Perpetual Pro Licenses
Capture One version 9 and later: 3 concurrent activations.
Capture One version 6, 7 and 8: 2 concurrent activations.
For Perpetual Pro Fujifilm & Pro Sony Licenses
All versions: 2 concurrent activations.
For Subscription Licenses (Pro, Pro Fujifilm, Pro Sony)
Pro (for Sony), Pro (for Fujifilm) and Subscription licenses allow for 2 concurrent activations.
For Multi-User Licenses
5 or 10-seat licenses are available from our e-shop and other number of seats (up to 50) can be purchased from Phase One partners. To find the nearest partner, please visit the Partner Locator page, here.
Deactivating Capture One Seats
Each machine will produce a unique identificaiton to our servers. Therefore, when a new machine is purchased, an OS is reinstalled, hard drive rebuilt, or other major hardware changes it can be "seen" as a new computer. This would require an additional activation.
To solve this error you can either deactivate a computer you are no longer using within Capture One: Deactivate inside CaptureOne or Media Pro.
If you no longer have access to a machine that you need to de-activate, you can reset individual activations or entire licenses remotely. This KB article explains how: Deactivate Online