In order to be able to use the mail function of the KGS tia® H5 Viewer, the company must have implemented user administration via Office 365/Azure.
...
For instance:
https://IP-Address:HTTPS-Port/[Applikation]/contentserver (CSV - “ContentServer incl. tia® H5 Viewer”)
https://IP-Address:HTTPS-Port/[Applikation]/viewer (V - “Viewer standalone” and for using the viewer tia® H5 Viewer from within SAP)
Certificates & secrets
...
For instance: https://login.microsoftonline.com/tenantID
ClientId: This is the application identity. Can be viewed under "Overview"
...