If your employees do not have an Internet connection, they can still use the app to clock in, take pictures, change task and clock out as they regularly do. They just use the app as always and the events will be saved on the phone with the time of when the photo was taken. When Internet service resumes, the events will send automatically.
Below is a screenshot of what your employees will see to indicate that they have no internet connection. The red box has a number in it that shows how many photos are waiting to be sent to the SYNCrew servers.

Certain features of the app (like My Time, Directions, Help options and a few others) are not available in offline mode.
As always, please contact your account manager or our support team at support@syncrew.com with any questions.