I went into settings, then automation and created a rule such that if the field in my form status of delivery is equal to "second delivery unsuccessful" an sms is sent(task). The task is below.

sms

input.Mobile_Number

We tried to deliver your items twice and unfortunately you were not at home so please could you collect the items or phone us if you want to reschedule a delivery I added clickatell as a connection and used it This is not working. Please could you tell me what I have done wrong Does the mobile number need a plus before it? If so, how would I do that it the field is a number field