The correct format of the phone numbers in the audience file for any model used will be
Country code to which the mobile number belongs, Area code followed by the mobile number to which we will send the message.
The digits all go together, without spaces or special characters.
For example in Argentina the country area code is 54 9
If the cell phone number to send the message was1160058974
We must load the data as follows5491160058974
Remember that each country or region has its specific code and if there are particular considerations in any destination, you must consider them.
For example, in Mexico the code can be tener 1, being its area code 52.
If the mobile number where we will send you the message was 5581473733.
We must load the data of the following way5215581473733 0 525581473733