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LifeTime — RKeeper 7 Write XML Order — a license is purchased once for a specific object and does not imply any restrictions on requests within this object.
After purchasing a license, you need to generate a license key and add it to the restaurant properties in the manager station. Read more in the article Saving Orders XML Interface
Subscription based — a license for the integration of external applications for 1 or 12 months. SaveOrder, PayOrder, MakeRetunGoods requests must be signed and verified by the licensing system. For more information, see Using the XML Interface by Subscription.

Methods of Data Exchange with XML Interface

There are two ways to exchange data with the XML interface:

Using the HTTPS protocol — available from r_keeper version 7.05.03 and later
Using rk7xml.dll — in this case, you need to add an XML interface to the cash server, data exchange will be performed through the port specified in the server properties. To test the process, you may use the special utility XMLTEST.exe. Read more about the settings below in the Setting up the XML interface using Configuring XML Interface Using rk7xml.dll section.

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