I had a similar use case. My use case didn't involve a workflow, but you could use similar logic to accomplish sending to a group.
Inside of Incident Alerts I created a UI Action. On-click the UI action retrieves a system property that is an array of phone numbers. I use this property for people that want to to be notified when an outage occurs.
It then uses an ajax call to a script include passing the array to a function that loops through each phone number sending a text to each phone number. You could easily do this in a workflow as well. Here is an example of looping through an array to send a text message. If you need more detail on how to do this for an assignment group I an assist with that as well.
sendSmsText: function() {
var sourceID = this.getParameter('sysparm_id') + '';
// define our AJAX XML response root node
var payload = this.newItem('groupText');
payload.setAttribute('success', 'false');
// set worknotes variable
var beginNotes = gs.getMessage("Attempted to send Major Incident Text Notification to the following recipients: \r\n");
var recipientNotes = '';
// get recipients
var recipientGroup = this.getParameter('sysparm_group');
var recipients = this._getGroupMembers(recipientGroup);
//recipients = (JSUtil.notNil(recipients)) ? recipients.split(',') : [];
//get message loop through recipients and send text
var message = this.getParameter('sysparm_message');
var success = 0;
for (var i = 0; i < recipients.length; i++) {
var recipient = recipients[i];
// send text to each recipient
//var id = recipient.id;
var user = this._getUserByID(recipient.id);
if (this._text(user.name,user.u_oncall_number,message))
success++;
// success?
if (success > 0) {
// update the payload to success
payload.setAttribute('success' , 'true');
recipientNotes = recipientNotes + user.name + '-' + user.u_oncall_number + '\r\n';
} else {
gs.addErrorMessage(gs.getMessage('A recipient had an invalid on-call phone number'));
}
},
_text: function(name,to,message){
var from = gs.getProperty('com.snc.iam.notify_number', '');
// got a from number?
if (JSUtil.nil(from)) {
gs.addErrorMessage(gs.getMessage('Configure com.snc.iam.notify_number property to contain the Notify number to use'));
return false;
}
// got a number?
if (JSUtil.notNil(to)) {
// send SMS text to user
this.notify.sendSMS(from, to, message);
return true;
} else {
gs.addErrorMessage(gs.getMessage('recipient {0} could not be added to group text',[name]));
return false;
}
},
