In what format must phone numbers be written on import?

It is common for companies to collect phone numbers as member data on their members. To import phone numbers into the associated membership card, it is required that the number is written in the correct format and is actually a mobile number. In addition, it is not possible to import home numbers/fixed telephony.

For Rule to be able to read mobile numbers smoothly when importing, the number should be written in country code format, i.e. for example +4673867xxx. (46 for Sweden and removing 0).