Azure AD Batch import users ( about 100k from different directories)

Question

Hi all !

I'm thinking about the best solution to merge many directories (on-prem AD, AAD, ...) into one directory ( AAD ).
There are about 30/50k Users on each source directory.

I'm not able to find if there are limits/throttling on Azure AD users creation, so i'm thinking about using a powershell script or doing it by Graph API.

Do someone have any idea on how to achieve it the best ?

Thanks at all for your help !

Answer 1

Hello @sbastiendillier-8557 and thanks for reaching out. There are several options here. If it's a one time only import the easiest is to write PowerShell script that adds a user at a time, this authenticating as a User Administrator or similar Azure AD role. A faster way is to use batching, but since this is not yet supported in the PowerShell you will have to do it in JavaScript, TypeScript or C#. Throttling will happen if Identity and access service limits are surpassed or in situations when the services are under heavy load. In any case your script should implement a retry strategy based on Best practices to handle throttling and Throttling and batching.

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