While Pending Collaborators, or users that have not yet accepted a collaboration invitation, appear in the list of Collaborators for a folder, you may notice that they will be removed after a certain amount of time.
Root Cause
Collaboration Invitations expire after 30 days if they are not accepted.
Resolution Steps
To resolve this issue, please re-invite the user to the folder and instruct them to log on to Box and accept the invitation.
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