Configure Office 365 as input source

Open ReadSoft Collector General settings dialog box.
Select the Input tab.
Click .
In the dialog box that is displayed, select Office 365 in the Type list.
In the Display name box, type a name that helps you remember what the input source configuration is used for. When the input source configuration is complete, what you enter here is displayed in the Display name column of the Input dialog box.
Add any additional relevant information in the Description box.
Click Next.
In the Tenant Id box, specify the domain of your Azure AD tenant. This is your domain tenant name or endpoint GUID.

The endpoint GUID is available on the Azure portal > App registration page. Multiple endpoints are visible there, but they all have the same GUID which is what needs to be specified here.
In the Client Id box, type the application ID that was generated when the application was registered in the Azure portal (for example, f7ce6223-8fe1-4199-b229-bfbe2b5209a0).
In the Redirect URI box, type the redirect URI that was created when the application was registered in the Azure portal (for example, http://mytestapp, https://mytestapp1).
(Optional) Configure impersonation if you want to access a different mailbox using the credentials of the input source email account:
1. Select Use Impersonation.
2. Select Id Type, such as PrincipalName and id.
3. Specify the corresponding Id.
Click Next.
You can use the Start folder box to filter which folders are displayed in the dialog box. (while configuring input source). For example, if a lot of folders are accessible from your email account and you use * only, it may take a considerable amount of time to display the next configuration dialog box since the program looks for all folders that are accessible from the account specified (including all public/global folders that may be available). It goes much faster if you use a filter to limit the number of folders that need to be displayed. Consider the following suggestions:
- In connection with specific paths, forward slashes (/) should be used (Inbox/Collector, for example).
  
  Some mail servers use a different delimiter (backward slash(\), for example). You will need to test this to find out which delimiter applies.
- Using an asterisk (*) is recommended in connection with folder names:
  - Specifying Inbox/* would only display all sub-folders to the Inbox root folder for the specified account (eliminating the need to browse through all public/global folders that may be accessible from this account).
  - Specifying Inbox/Collector/* would narrow the search even more to only those folders (and their sub-folders) under the Collector folder that is under Inbox.
Using the /* characters at the end ensures that any additional sub-folders to sub-folders are also displayed.
Click Next after specifying the filters.

The folders that already exist for the user account specified are displayed. Select the folder where you want ReadSoft Collector to get the source files.
Click Next.
- Click an item in the folder list to access any potential sub-folders (a + sign is added to the list entry if sub-folders are present).
- Click the plus sign (+) next to a folder in the list to display sub-folders.
- To create new folder, right-click a folder in the list and select Create folder.
Specify the folder where files are worked on internally for safer processing. Click Next.
Specify the destination folder where you want to put processed emails. See tips above. Click Next.
Specify the folder where you want to put emails that contain errors after processing. Click Next.
Click Finish.

A ReadSoft Invoices Interpret job that is configured to process email using ReadSoft Collector can handle both image and XML-based invoices that are included as attachments but not in the same email. That is, you can have emails with XML attachments, or you can have emails with image file attachments, but you cannot have both XML and image files in the same email.