Congratulations!
You need to enter the OneBox Network application from the recipient's Onebox, select the sender's company, that is, your company.
And configure the interaction
https://tppr.me/HGPC6, and in the menu that opens, select
https://tppr.me/N9U2hWith such settings, the following will happen in the recipient's CRM: when you transfer a document from your CRM to the recipient's CRM, the selected business process will be created with the attached document file.