"you must specify at least one already-initialized correlation set for a non-activation receive that is on a non-selfcorrelating port"

Problem

When you compile your BizTalk project, you receive the error "you must specify at least one already-initialized correlation set for a non-activation receive that is on a non-selfcorrelating port".

Cause

This error can occur if your orchestration has no activating Receive shapes (Activate = true) or has no activating Receive shapes and is not called directly by another orchestration.

Resolution

If your orchestration is not called by another orchestration, you must configure one of the Receive shapes to be an activated receive.

Source: Microsoft