Before invoice creation, the buyer selects a supported chronicle or client from the website catalog. Build name and protocol are shown in advance so the user understands which project the license will be created for.

The purchase form requires a public domain or public IP address of the login/auth server. Localhost, private addresses, reserved ranges, and public DNS resolver addresses are not accepted because they are not the buyer project address.

• supported chronicle is selected before payment;
• project address is validated before order creation;
• selected parameters are stored in the order;
• after payment, the license is issued with the same parameters.

If the required build is not listed, the buyer should not create an invoice for an unsuitable option. It is better to send a request through the contact form and include the chronicle, client protocol, and a short project description.