Has anybody had experience integrating Matrix with Microsoft Dynamics CRM, specifically Matrix Custom forms?
Ideally a squiz custom form would be used to hook into Dynamics API. Has anyone been doing that?
No, but when I looked at it it seemed pretty straight forward using the Dynamics REST API: https://msdn.microsoft.com/en-au/library/mt593051.aspx?f=255&MSPPError=-2147217396
So you could then easily just use the Submissions Actions on the Custom Form to call the Dynamics API on each submission and even validate the response before marking the submission in Matrix as completed.