Hi @Anonymous
For the Modified By field, note that in general, you get the GUID only. You have to add another action to get a record and select the current environment and the Users Entity and pass the Modified By Guid for the record identifier and then you can get the name of the user. You can also check out this post for more info on this: http://linnzawwin.blogspot.com/2019/12/power-automate-list-records-use-expand.html
What trigger are you using? Can you add an action to get record and select the current environment and for entity select the same entity on which the flow is being triggered and pass the record identifier guid from the trigger outputs and check if you are getting all the fields as an output of the get record action?
Hope this Helps!
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