In the Next-Gen Viewer, dropping a pin in a 3D project model works the same way regardless of where your team stores its federated project model. Because pins utilize the Procore Connected Items feature, pins sync automatically between 3D models and 2D documents. The only difference is where your team views the 2D version:
While the 3D experience remains identical, your chosen repository determines whether field teams access 2D pins in Drawings or Document Management.
What's the difference between a link & a pin in a model? A link ties a Procore record directly to a physical 3D model object (like a specific pipe or door). It does not require dropping a spatial pin. A pin ties a record to a specific spatial coordinate (X, Y, Z location) in the model by dropping a visual 3D pin.