A connected calendar shows its state under Calendar Sync in My Availability: when it last synced, or a Sync error badge with the reason.
Most problems are an expired connection and are fixed by reconnecting.
Check the connection
- Go to My Availability.
- Look at the Calendar Sync section.
- Read the line under the account name.
"Synced 5 minutes ago" means all is well. A red Sync error badge carries the reason beside it.
Authorization expired
This is the common one. It means the permission you granted has lapsed or been revoked, often after a password change or a security review of connected apps.
- Click Reconnect beside the account.
- Accept the permissions again.
The same steps clear a line that reads "Roll Call can't write to your Roll Call calendar". It appears under the account name when Google or iCloud turns away Roll Call's request to make your Roll Call calendar, or to add or change a session on it, or no longer accepts your saved sign-in. Sessions are not reaching that calendar until you reconnect, and the line goes away by itself once Roll Call has made the calendar or written a session.
Apple password rejected
Apple connections use an app-specific password, which stops working if it is revoked or your Apple Account password changes. If this error keeps coming back, generate a fresh one, click Reconnect beside Apple Calendar and paste it in, keeping the same Apple ID. Your selected calendars and your synced time off are kept. See Connecting Apple Calendar.
Your ordinary Apple account password will not work here.
Reply not understood
Your calendar service answered and Roll Call could not make sense of the answer. That is a fault at Roll Call's end, or a hiccup on the way, rather than anything wrong with your account, so reconnecting will not help.
Nothing is lost while it lasts. Roll Call leaves the times it already holds in place and goes on blocking them, so your session times stay protected. What it cannot see is anything added, moved or cancelled since.
These usually clear on their own, and Roll Call keeps trying. If one is still there a day later, contact support.
Request was stopped
Roll Call checks that every calendar request is going to your calendar provider and no one else, and this one was not, so Roll Call stopped it before it was sent. Your calendar sign-in details did not leave Roll Call.
You do not need to change your password or your app-specific password. Nothing to reconnect either, and reconnecting will not clear it. If the badge is still there a day later, contact support.
Sync did not finish
Something went wrong at Roll Call's end that has no more specific answer than this. Your account and your calendar service are both fine, so there is nothing to reconnect.
Roll Call leaves the times it already holds in place and goes on blocking them, so your session times stay protected. It tries again on the next sync, and most of these clear on their own. If one is still there a day later, contact support.
Calendars were removed
A warning rather than an error. A calendar you had selected is no longer in your account, so Roll Call has stopped reading it. Review the list and tick a replacement if you need one. See Choosing which calendars Roll Call reads.
A calendar was unreadable
The calendar is still in your account and still selected, but Roll Call was refused when it tried to read it. A shared calendar whose owner has changed who can see it is the usual cause.
Roll Call keeps the times it last read from that calendar and goes on blocking them, so your session times stay protected. Calendars Roll Call can still read carry on as normal. What Roll Call cannot see is anything added, moved or cancelled on the calendar it was refused, so a session time you are newly busy for there can still be offered, and a meeting you have since cancelled there can still block one.
One case is worth knowing about if the same meeting sits on two of your calendars. Roll Call records which calendar it read a time from, and it can only record one. If it had been reading that meeting from a calendar it can still see, and you remove it there, the time stops blocking. That happens even though the unreadable calendar still has the meeting on it. Unticking the unreadable one leaves Roll Call with a clear answer.
- Open the calendar in your calendar app and check you can still see it.
- If you no longer have access, untick it in the list under Calendar Sync.
- If you do have access, click Sync Now. A one-off refusal clears itself.
Stale sync times
Click Sync Now to sync again.
If an event you just added does not appear, check it is on one of your selected calendars.
Still stuck
Disconnecting and connecting again clears most states, but it is the blunt option and it is rarely the one you want first. It removes the events Roll Call imported, along with the time off they created, and it forgets which calendars you had chosen. If you use Auto-RSVP, disconnecting your last calendar turns it off, and your campaigns go back to awaiting your response. If your Apple app-specific password is the problem, use Reconnect instead: it keeps all of that.
If the error survives that, contact support with the provider name and the message shown.