Google Sheets
Importing and updating contacts
with 
To automate the import and update of contacts from one application to another.
Emails, SMS and voice messages
with
To automate the sending of messages between Digitaleo and your application.
What you can do with 
Synchronise your contacts on one side only
For example: update a contact in Digitaleo when a line is modified in a Google Sheets file.
Excel
Importing and updating contacts
with
To automate the import and update of contacts from one application to another.
Emails, SMS and voice messages
with
To automate the sending of messages between Digitaleo and your application.
What you can do with
Synchronise your contacts on one side only
For example: create a contact in Digitaleo when a new line is added to an Excel file on OneDrive.
Google Contacts
Importing and updating contacts
with
To automate the import and update of contacts from one application to another.
Emails, SMS and voice messages
with
To automate the sending of messages between Digitaleo and your application.
What you can do with
Synchronise your contacts on one side only
For example: update a contact in Google Contacts when they fill in a form sent with Digitaleo.
Automate your SMS, emails and voice messages
For example: send an email to a contact with Digitaleo when the "prospect" label is assigned to them in Google Contacts.