Do you have your own extensions (or the ones commissioned to our specialists) being separate programs (with separate login, address and interface inconsistent with the rest of the panel)?
As a part of our final step on the way to connect the world of SaaS and Open Source, i.e. Open SaaS™ you can add them to the panel and run safely, without the risk of spoiling something in the store, losing warranty and free support of our specialists, as if it were your own modification of the panel's code.
Applications, as before, are integrated through the panel API or other available APIs. You can, for example build your own integration with the courier using open couriers API couriers or ISF and put the module for generating the register book and performing additional processes directly in its administration panel, through the icon in the SALES department.