63013: Channel policy violation
PROGRAMMABLE SMS
ERROR
This message send failed because it violates Channel provider's policy. Please see Channel specific error message for more information.
- If more than 4 consecutive whitespaces replace a placeholder in a WhatsApp message body.
 - If an empty or null string is passed into an approved WhatsApp template variable.
 - When there are consecutive new lines where a channel does not support it.
 - When there is variable in a field that the channel provider does not support variables.
 - Unsupported media file type
 - When there are emojis in fields that do not support them or there are too many emojis in a field that only allows a limited number of emojis
 
Check content is in compliance with Channel providers policy.