How to add contract in google contract

Click on google apps then contacts.

click in contract..create a contract then fill Name, Last Name, company, Job title, Email then save it.

 

How to  create groups in gmail (labels)  

visit the site: https://contacts.google.com/

labels..then create labels..give name to labels save.

then tick the email you want to label (sign >)tick on the label name then apply

How to delete label name from email id

click on the email id you want to delete from group....then ... (triple dot) more action..remove the tick from the label.