Hello @Joseph Grady,
Thank you for posting your query on Microsoft Q&A.
Based on your description, it appears that you're attempting to exclude Dynaway CMMS from Conditional Access Policies. However, due to its service dependency on first-party applications, the application is still being affected by the Conditional Access policy.
To determine if there is an alternative way to exclude your application from the policy, we need to examine the application's configuration in your tenant. Reviewing the sign-in log details will help us identify whether the policy is being applied due to service dependencies.
Or else you can try doing it through assigning custom security attribute to your application and excluded the custom security attribute values from the CA policy just to understand if that helps in this situation.
Add or deactivate custom security attribute definitions in Microsoft Entra ID
Assign custom security attributes to an application
Filter custom security attributes via conditional access policy
I would be happy to discuss this scenario further with you offline. Please email me at '[AzCommunity@microsoft.com]' with the subject line "Attn: Pothuraju" and include a link to this thread in the email body.
Thank you, and I look forward to our conversation.
Thanks,
Raja Pothuraju.