Let me explain our data structure:
  1. Workflow Contractors (tax number of company, adress, ceo etc)
  2. Workflow Deals (its about goods, price etc)
One Contractor have many Deals.
In Deals we want to make API calls (to generate docs or to send some data to financial tool) and that call should know about native workflow Deals and linked workflow Contractors (for exaple, we need to send tax number).