In connection with what is the error when unloading the nomenclature from 1C: “You cannot clear the required attribute”?

Question

1C-Bitrix

Good afternoon, while trying to unload the nomenclature from 1C UT towards 1C Bitrix, I get an error:

Exchange failed
Product unloading completed with errors!
Can't clear required props

Why does this error occur? How to determine which required props is trying to clear?
Thank you.

Answer 1

If it doesn't google, take a phrase and grep through the file and then analyze the code.

Answer 2

This question should be asked to the programmer who wrote this processing. Alternatively, it may simply not be filled in some field in the 1s program that is required, respectively, it is empty, and when checking the unloading, such an error is generated. But anyway, it's better to ask the programmer who wrote this code and what is encoded under this message.