In 1C 8.3 - where is the setting for data exchange with the website?

Question

1C-Enterprise

Somehow I made a site on simplacms and in 1C 8.2. set up built-in data exchange with the website in trade management.
the company was recently transferred to 1s 8.3 and the guy who translated something did not know how to set up the unloading of goods now. gave access through the web interface - and there it’s not even close, and all I found was loading orders. after entering, it is displayed that this is the Accounts Department of the enterprise. However, as I understand it, I need UT? He says they say it's the same here ...
In general, who knows - tell me how it is in 8.3. set up, preferably with a screen of how it looks. I can’t find anything sane on the Internet, except for some paid modules, or for 8.2
in 8.2 It was configured like this (I myself am not strong in 1C)
blog.simplacms.ru/1c (although by itself it didn’t start for periodic unloading, something was installed, I don’t remember what, some kind of processing)

Answer 1

8.2 and 8.3 are code execution platform numbers. Update 8.2 -> 8.3 is like rolling a second service pack on Windows with the first service pack: I don’t lose programs, settings don’t crash, all documents are in their place; errors that are unknown to the average user are simply closed and the system as a whole simply works more stably. New versions of the platform can run old programs that were originally written under 8.0/8.1/8.2 (just like Windows has compatibility modes for old programs with Win98/NT/2000/XP)
If the exchange with the site stopped working for you, then the Trade Management program itself (UT) was updated for you. I suspect that from version UT10 to UT11 - their architecture is really so different that the old processing stops working (it's like changing the viewer from Adobe Reader to some DJVU Reader - both programs are good, but the second one does not read files from the first program). The programs of the "Trade Management" line initially included an exchange with the Bitrix website. You need to find a programmer who knows the new trading configuration so that he can correct the exchange processing in the same way as you corrected it for the old version.