...
https://docs.microsoft.com/en-us/azure/active-directory/develop/quickstart-register-app
register app as "Web app / api"
When done, send us application (client) ID, directory (tenant) ID and secret.
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(and we need to know which client in your webshop this is for)
1 - to get active directory id, login to https://portal.azure.com and go to active directory settings:
2 - register new app with type "Web app / api"
3 - on application card get application id
4 - create application secret key
5 - configure reply url - "http://identity.webmercs.com/sociallogonconnect.aspx"