Procedure on Twitter Website
1. If you don't have any Twitter account you have to create it (on twitter.com)
N.B. Make sure to connect the account with a telephone number, this step is necessary for the following procedure.
2. Go on Twitter App Page here and, once you're logged in, click on "Create New App".
3. Fill the fields as in the following form and than "Create your Twitter application".
4. Now you have successfully created your application!
5. Now look at the toggles under the application name you have inserted before and press "Permissions".
Be sure that "Read and Write" radio button are selected (if not, select it and press on "Update Settings")
6. Press "keys and Access Tokens" and then "Create my access token"
7. By clicking on the last button the page will be refreshed and you'll see a new paragraph called "Your Access Token" below which you will find the information required for the cms social connector to connect to twitter.
8. Leave the page opened and go on the cms where you need to configure the account.