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This means that some reviewer has assigned the certification to themselves to review. Contact your certification coordinator to resolve the issue.
How long to I have to review a certification once I claim it?
7 days
If I allow a reattempt, will I automatically be reassigned to the certification to review it?
Yes, when the reattempt it submitted on a certification that you performed the original review, the certification will automatically be claimed by you. However, you still have 7 days from that date to review the certification. Otherwise it will be released for another reviewer to pick up.