Just a short one –
As the error message suggests “An application user’s access mode cannot be changed “, it is not possible to change the Access mode of an application user from Non-interactive to either administrative or Read-write.
While trying to change the Application User’s Access Mode to Read-Write, the error message –
Get all the details about different type of users –
also check – https://community.dynamics.com/365/sales/f/dynamics-365-for-sales-forum/367844/when-uisng-non-interactive-users-when-using-application-users
Hope it helps..
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