How Many Google Contacts Can You Have. Once you click on Create Contact you will get the option to choose between adding a single contact or multiple contacts. Individual contacts must not exceed 128 KB in size.
So the limit is 100 that you can use to send to at one time. Both regular Google Contacts and Google Apps Contacts have a limit of 25000 contacts. If you would like any additional information or assistance please do not hesitate to let me know.
The total number of contacts in a Google account must be 25000 or less.
Follow Step 1 and Step 2 from the above. However if you want to add multiple contacts you can either add them by their names and email addresses or use a CSV file. After authorizing through Google you can connect multiple Gmail and Google Apps accounts and link their contact lists. Follow Step 1 and Step 2 from the above.