Invisibility of API description and actual work

Attaching the description of the totalsumcheck field from the API. In fact, the system records the difference in the Additional expenses field, which does not add up to the Total. So, according to API, I transfer 844 to totalsumcheck, and the product itself is 799. Like in the description of the field, I’m looking at the total amount of the purchase by 45 UAH, but in fact it turns out that the product is cheaper by 45 UAH, and the product itself is 799, not 844 . https://sambag.crm-onebox.com/28123/ [file]17618[/file] [file]17620[/file]