Kindly do your mail settings.

Following steps will guide you to do Mail Settings:-
 
Step 1:-  First login into an ERP


 
Step 2:-  Go to Admin > User level Configuration section 


Step 3:- Click on to the mail settings present at the right corner  


Step 4:- Enter the SMTP server, username, and password and then click on the Save button and then finally check your text Message.