Thank you for your efforts on the D365 CE implementation – the concept is truly innovative. As a Microsoft Dynamics 365 consultant, I've been using this at a major client for over a year.
 
However, I've encountered a persistent bug in the "Dual-write Party and Global Address Book Solutions." Microsoft Support acknowledges this but lacks a fix. The issues are:

  • Contact Record Saving Time: Increases to 6-30 seconds from the usual 1-2 seconds.
  • Multiple Power Automate Flow Runs: Each Contact record save triggers 3-9 Flow runs, particularly when modifying address fields. This occurs even in a vanilla environment with no active Dual Write.

This significantly impacts usability, and I'm hesitant to recommend it to other clients despite its potential. Additionally, the Address sync between CE and UO is incomplete, leading to discrepancies across platforms like Outlook and Teams.
 
I am keen to assist in resolving these issues. Please let me know if my involvement can expedite a solution.