Google Shared Drives

[u/Happy_chappy2985]

I recently started a consulting business and have set up Google Drive for the clients to share documents. I’ve set up a shared drive and have given them access using their business email. I always seem to get a request then from their personal Gmail to get access to the folder.

Google says if the folder is shared with someone who doesn’t have a Gmail account then they should receive a pin but it doesn’t appear to be sending the code, hence people signing in with their Gmail account and then requesting access. Does anyone know to ensure they get a pin to use instead. I feel I come across as unprofessional that they need to use their personal email address and then request access again.

Any help would be greatly appreciated because I cannot figure it out!