License Installation Workflow – Single Offer, Multiple Offers, and Pay-As-You-Go Licensing Models

Here is the typical workflow for the creation and the installation of a
third-party license for an extension using the single offer, multiple
offers, or pay-as-you-go licensing models in Plesk:

Step by step description of the above diagram:

1. A customer comes to Plesk Online Store and orders a new third-party
   license.

2. Plesk Online Store takes care of payment but delegates creation of
   the new license to KA.

3. KA calls the ISV endpoint with License Creation/Renewal/Upgrade
   Request (the PURCHASE action) to request a new
   license, and, after a successful response, stores the body of the
   license in the KA database.

4. Finally, the customer gets an activation code for a newly created
   license.

5. The customer goes to Tools & Settings > License Management in
   the Plesk user interface, goes to the Additional License Keys
   tab, clicks Install Key, and then enters the activation code:

   

6. Plesk connects to KA to retrieve the license body by the entered
   activation code.

7. When the license is successfully installed, Plesk extension can
   retrieve it using Plesk
   SDK.