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Outlook Addin in 25R2 - Register an Instance with Microsoft Entra

  • November 13, 2025
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We upgraded from 25R1 to 25R2 and the add-in for classic Outlook 365 stopped working.  I reviewed help and it seems there are some updated steps for registering the Acumatica instance in Entra.  Under the Expose an API section, we need to add an Application ID in the format of api://<fully-qualified-domain-name>/<app-id>.  We are on SaaS - what do we use as the fully-qualified-domain-name?  Entra does not accept mycompany.acumatica.com since its not verified.  I can’t verify it since I can’t add it to my DNS.  Any insight?

Best answer by nickcerri32

​@brucewarrell96 - I had a customer who had a similar issue.  Ultimately, we escalated a case with Acumatica that required a server-level config change.  

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nickcerri32
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  • nickcerri32
  • Semi-Pro II
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  • December 16, 2025

​@brucewarrell96 - I had a customer who had a similar issue.  Ultimately, we escalated a case with Acumatica that required a server-level config change.  

Nick - If we helped give us a Like. If we answered your question, select the Best Answer option.
    T
    Acumatica Moderator
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    • Tara H
    • Acumatica Moderator
    • December 22, 2025

    Hi ​@brucewarrell96  Thanks for reaching out.  As ​@nickcerri32  suggests, please open a case with support so that they can connect and answer appropriate to your specific instance.  

    Best,

    Tara

    Happy CRM'ing! -Tara (Acumatica Technical PM-CRM)
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