When scheduling all 414 posts (46 clients x 9 posts each) the CSV import spreadsheet didn’t have a column for the GoogleMyBusiness CTA. Depressing!
So I imported them just as photos and scheduled without CTA button for the sake of “getting it done”. Otherwise, I would have had to manually add the CTA link and button 414 times. But they aren’t getting much exposure bcz Google favors posts with CTA button in the search results.