You can accept the invitation to a project from the web version of Bulldozair; via the associated automatic e-mail, or using you Android application; this action is not possible on the iOS mobile application.
On the Webapp 🖥
When someone invites you to join a project, a notification appears next to the envelope icon ✉ in the top right of your screen.
Then scroll down and accept the invitation to access the project.
When someone invites you to join a project, you will receive an e-mail automatically at the same time.
NB: Do not forget to check in your spam/Junk if you don't receive the e-mail in a few minutes.
Once opened, click the button to join the project.
Then the web application will open in your browser, and allow you to accept the invitation.
Click on the three bars in the top left of your screen
Click on "Invitations"
Accept to join the project
☝ If you can't find the e-mail, try going through the web application directly.