few tables from dataflow are missing

Hi soon_ann 

Unfortunately currently there is no option to find the edit history or recover deleted dataflows/tables. There is a similar idea on Power BI ideas forum you can vote up: Microsoft Idea: Ability to undo a deleted dataflow

Have you back up the dataflow into .json files previously? If not, I'm afraid you need to rebuild them from scratch. 

You need to backup the dataflows periodically to avoid this next time. 

How to Make a Copy of a Power BI DataFlow – business intelligist

Are you backing up your Power BI dataflows? Here are two ways to ensure you never lose them. • Cooptimize

Best Regards,
Community Support Team _ Jing
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