If the recipient phone number isn't in international format, we'll automatically format it for you. This will work for all messages being sent to your default country. You can check/adjust your default country on the dashboard here: Default Country
If you want to send messages to any other country, make sure you enter it in international format e.g. UK : +44xxxxxxxxx OR if you're sending via our API, you can pass the 'country' parameter for each recipient along with the request. We will then automatically format the recipient numbers for any country (you can supply the numbers in local or international format).
If you add contacts to your ClickSend contact list, it will automatically format the number if you choose the country from the dropdown.
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