We have three options here for finding the integration docs:
Finding the integration Document For your Sources
Head to the campaign and find the source, click the three dot menu and you can click Integration Document to view.
Finding the integration Document For Campaign Owners/Clients
Head to the campaign and then click the three Dot menu, here you'll see Client integration Document.
Finding the integration Document For Suppliers
If a supplier to the Databowl instance owner, this may have been sent to you already. If not, head to you campaigns and then click the Source Integration for the campaign you need.