Symptoms

Customer received the following error when trying to create process from K2 Designer for SharePoint:
The InfoPath form associated with the form content type does not exist. Publish the form to the form library or update the document template URL of the “Form” content type to a valid URL.
 

Diagnoses

The issue was caused by having Submit Data Connections in the form template.
 

Resolution

After removing the “Main Submit” Data Connections from the template, and republished the form to the form library, customer was able to create process in the K2 Designer for SharePoint.