Attending to have my files renamed. However, it does not find %episodeNo%##. What is the ID3tag in the file it is looking for?

Depends on your container format. Attach your conversion log.

File Tags / Attribute Episode Season

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File Renaming Metadata and Renaming	4	3932	June 27, 2017
Converted tv shows missing Episode and season number Metadata and Renaming	4	589	January 13, 2020
Renaming and Moving Only - Wrong Episode Number In File Name Metadata and Renaming	2	430	February 21, 2023
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Wrong Season Number Metadata and Renaming	1	660	February 12, 2019