The buyer says they didn't receive the invitation email. What should I do?

Invitation emails are sent by default from the Patisco platform mailbox (service@patisco.com). If your company has selected Resend Custom Domain in Company Basic Settings > Email Settings and the domain is verified, it will be sent using your own domain instead. The system does not have SMTP configuration. Check the following steps in order: 1. Go to Buyer Management to check the invitation status for this buyer. "Not Invited" means you haven't sent an invitation yet. If you previously selected "Generate link only, I will send it myself," the system will not send an email. 2. Verify the Email address is correct and ask the recipient to check their spam folder and add the sender to their contacts. If you update the Email address, the invitation sent to the old address is invalid and must be resent. 3. The fastest method is to skip waiting for the email: click Copy Invitation Link on the buyer details page and send it to them via LINE or Email yourself. 4. After 14 days, a red Invitation Link Expired message will appear. Click Refresh Link to update it. This does not send an email and the URL remains the same. 5. To have the system resend the email, go to Connection Management > Invitation History, find the record, and click Resend Invitation. Both resending and refreshing the link count toward the daily invitation limit.