How to properly handle the unloading of category 1S?

Hello!

The crux of the matter. Loads of contractors from 1C added an additional field. I tips on how to properly handle the unloading on the site, so that when unloading from 1C, additional free-in added to upload, record in the custom field.

Prompt in what direction to go. Maybe someone has already done this and share the solution. But in General will be sufficient, and hints.
March 23rd 20 at 19:22
1 answer
March 23rd 20 at 19:24
Solution
Figured out myself. Method CSaleOrderLoader solved the problem, expanded the class to fit your needs.

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