I have a requirement to upload the pdf files to google drive in specific folder. for that I am referring to the google drive documentation
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We are working for a client, Caltimes, who has given us permission to access the Google Drive API.

I’m trying to read files using a Service Account from shared folders using Google API in PHP codes. It works when reading from the shared folders in MyDrive, but not in other shared folders from another department.

I have 3 files in a Shared Drive in a folder – all of these are the same text file/data