Send message with out ID

Hello.

I would like to know if it is possible that you help us with this situation. I have the next script that works fine.

/global/proactive/APClient/APAgent/APClient --map-data default 8 "Alive de Oncall" "Alive de Oncall generado por BEM" Alive text_pager

Though, I have the following questions:

1. 1.- In this script the 8 is the user ID, however I need to send a message without the ID, so can I use a phone number instead of  the user ID (8)?
2. 2.- Is it possible to send this script if the user is not created in the xMatters application?

Please let me know if you need more information, I look forward to hearing from you.

Best Regards,