Hi @Tim D
Graph Api currently does not provide a method to directly delete Teams meeting recording files.
In Microsoft Teams, the current storage location of meeting transcript files is known as Exchange Online transcript or substrate transcript.
You can choose to use XML or EWSEditor to delete transcripts saved in Exchange Online.
Also, if your transcript is saved in OneDrive and SharePoint. You can choose to delete Teams meeting recordings along with their accompanying transcripts by using an auto-apply retention label policy that identifies these files from OneDrive and SharePoint transcript or OneDrive transcript.
For more information, see Delete Exchange Online and OneDrive transcript files
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