Can't save as Word document to OneDrive

I have asked the question before, and now cannot get the answer.

I have recently moved over from Windows to Macbook. All my work is done on Microsoft, in addition to Adobe. I usually use old motivation letters as an template and change a few details and then save it in OneDrive under the patient's name and file number. Now, when I try to "save as" it lets me do it, and the moment I start editing the document, it turns off the autosave. When I click on autosave it says that autosave isn't available. When I close the document, it asks if I want to save, which I then do. And then I get an error that says document cannot be saved.

I have read a few tricks, and have tried the following:

• Try to change the permission. My thought is that Word/Microsoft just needs permission from the Mac to edit and then save. Or the other way around.
• Tried to work directly from Microsoft web. Did not help. Tried to open the documents from there and then try to save. Did also not help.
• Went to Go->Home->OneDrive->Get info->Permissions etc->Apply to all enclosed systems
• Also got an error that said "The file contains Macro's. Please remove them". Then I tried to save the document as .docm and some other type. Did not work.

What I am able to do is choose Acrobat in the Word document, Create PDF, save it in the correct folder in OneDrive as a .docx and then export it when I am done. This is insanely long way to do it.

Please help me!! Please use laymen's terms. I don't get tech lingo. I don't understand what VBA, etc is.