I am relatively new to Klaviyo and still building subscribers. I transitioned from MailChimp and I have 10 customers that opted in to SMS, but I can’t get the file to upload. I have tried every way possible, but nothing seems to work. Since there are only 10 numbers, is there a way to manually add them so I can start sending marketing messages?
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Hi
https://help.klaviyo.com/hc/en-us/articles/360035428731-How-to-upload-a-list-of-SMS-contacts
If so, what happens when you try to upload?
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