Action button not showing when sending to other gmail account
问题 My ViewAction button is working fine when using the Apps Script to send the email to myself. (Same gmail account as logged in) function testSchemas() { var htmlBody = HtmlService.createHtmlOutputFromFile('mail_template').getContent(); MailApp.sendEmail({ to: "myemail@gmail.com", subject: 'Test Actions in the Inbox - ' + new Date(), htmlBody: htmlBody }); } When setting another gmail account as recipient, the action button won't display. I've tried several gmail accounts. By the look of it,