How do i create custome Alerts for Group?

easiest way would be to use a group member alert and specify the name of the group.  Now if each member needs to go to a different person/group, then you'd be better off creating a node custom property called EmailContact, assigning that to the nodes, creating the needed values, then in a node down alert, or any node alert, use the variable ${EmailContact} in the To field and it will then pull the values for the specific node and send that way. 

Dear Mharvey,

Thanks for your respond back to me.

Can you please make me understand in pictorial way.

Still confusion in node custom property.

Once again thanks for your respond.

First create the custom property:

Once created, edit the nodes and insert the values for the email address for those devices:

When you configure your alert, you can use that property in the To Field of the email action:

This will allow you to create your alert and have the email trigger to the email address you put into that custom property.

Still its not working.

Please do let me know clearly i am not getting this point.

In condition part which thing i need to define ?

So set the alert to Group Member, set the conditions to MemberStatus is equal to down.  Now, having the alert set to Group Member, you will need to have the email variable set to ${Node.EmailContact}.

Please see my conditioning snap short for this and still facing issue.

Please help me to resolve this issue.

Do you have the EmailContact filled out for each member of the group?  Have you configured a message within the email action?

Please also see my custom property snap shot and i given name as EmailContact

Please let me know

OK so you'll need to be a bit more detailed on what the actual problem is then.  The alert looks set up, the property is there, however the nodes are up, so the alert's not going to trigger until one of the nodes in that group goes down.