Is it possible to have a multitenant app that access via Azure Active Directory to azure search Services?
Yes it is possible, in fact Azure Search has an entire document describing patterns on setting up a multi-tenant Azure Search, see : https://docs.microsoft.com/en-us/azure/search/search-modeling-multitenant-saas-applications
In particular please take a look here : https://docs.microsoft.com/en-us/azure/search/search-modeling-multitenant-saas-applications#considerations-for-multitenant-applications
There are quite a few intricacies in regards to this so if you have any questions regarding this please submit it as an issue against the github doc. https://github.com/MicrosoftDocs/azure-docs/issues/new?title=&body=%0A%0A%5BEnter%20feedback%20here%5D%0A%0A%0A---%0A%23%23%23%23%20Document%20Details%0A%0A%E2%9A%A0%20*Do%20not%20edit%20this%20section.%20It%20is%20required%20for%20docs.microsoft.com%20%E2%9E%9F%20GitHub%20issue%20linking.*%0A%0A*%20ID%3A%207a513b7e-b574-a711-2245-bccc8a9907b5%0A*%20Version%20Independent%20ID%3A%20be7f8e49-30c5-1c98-c148-e408b75b1cd7%0A*%20Content%3A%20%5BMultitenancy%20and%20content%20isolation%20-%20Azure%20Cognitive%20Search%5D(https%3A%2F%2Fdocs.microsoft.com%2Fen-us%2Fazure%2Fsearch%2Fsearch-modeling-multitenant-saas-applications)%0A*%20Content%20Source%3A%20%5Barticles%2Fsearch%2Fsearch-modeling-multitenant-saas-applications.md%5D(https%3A%2F%2Fgithub.com%2FMicrosoft%2Fazure-docs%2Fblob%2Fmaster%2Farticles%2Fsearch%2Fsearch-modeling-multitenant-saas-applications.md)%0A*%20Service%3A%20**cognitive-search**%0A*%20GitHub%20Login%3A%20%40LiamCavanagh%0A*%20Microsoft%20Alias%3A%20**liamca**
i think frank answers well enough but you also can browse this one
just come across recently
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