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Applies to Product - Dynamics 365 Commerce


What’s happening?
There are issues related to port usage when debugging Dynamics 365 FO projects, where the CPOS service crashes due to port 443 being already in use.
 

Reason:
The port issues arise when multiple services attempt to use the same port (443), leading to conflicts during debugging sessions.
 

Resolution:

  • Assign another port in the debugging tool or configure multiple sites in IIS.
  • Identify and stop any other service using port 443 (besides the debugging tool and CPOS).
  • If possible, configure a separate development environment to debug the Dynamics 365 FO project without interfering with CPOS.