We have build Microsoft teams app that works across m365/Outloook/Teams. This app appears inside teams and m365, but not in Outlook. Is there a way to put our custom app inside left apps bar in Outlook OWA?
I'm new to microsoft admin center and I'm trying to figure out what configuration would help me with my problem, but I haven't found anything related yet.
My issue was not enabling Targeted release as mentioned in this document.