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If you plan to use the external tool option, plan to use Turnitin's rubric tools and grading options. Canvas rubrics don't display with the Turnitin external tool.
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Students cannot submit multiple file uploads to the Turnitin external tool.External tool assignments cannot include more than one submission date varied due dates are not supported.You cannot use external tool integration with group assignments.This means that if students need to submit after the due date, you need to delete their original assignment in the embedded Turnitin tool. There is no option to resubmit after the due date. Currently, the external tool's settings allow you to prevent resubmission of assignments or permit resubmissions up to the due date. The external tool option introduces some changes to the way assignments are handled.
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