The Adobe Scan info web page says, "Copy to: It gives you an option to add files on third-party cloud storage. You will only get the options only for the third-party application available/ installed on the device like Google drive, One Drive, or Dropbox."
I have pCloud installed on my device (see screenshot), but under the Adobe Scan Copy To options, pCloud is not listed.
Does anyone have advice on how I can have pCloud listed as an option under the Adobe Scan copy to list?
I don't have the solution to your problem, but my workaround was to select to "Save to My Device". Adobe Scan opened up a the files browser so I could tell it where to save the file. I then scrolled to the bottom and my Google Drive and pCloud "drives" I have linked to my phone were shown. I was then able to select pCloud and navigate to the folder in my pCloud account where I wanted to save the file.