63013: Channel policy violation

This message send failed because it violates the channel provider's policy. See the 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
• When the customer attempts to send a WhatsApp message with an invalid or not publicly accessible URL on their Call-to-action template.

Check content is in compliance with Channel providers policy.