@Jay Thanks for using Microsoft Q&A.
There is unfortunately no way to set order by or sort by in a Metadata Activity. Please provide this as a feedback at Uservoice so that community can upvote and the products team can plan to include this in future release.
You may need to write custom logic to perform this task. Please refer to this thread if this helps. Please let me know if you have any other questions.
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Please do not forget to "Accept the answer" wherever the information provided helps you to help others in the community.