Message template header format invalid
The template header format is invalid.
- Code
meta-2388047- Meta code
- 2388047
What to do now
- Edit the header under Templates using the formatting requirements in the error detail.
Why this happens
- The header does not meet Meta's formatting rules.
Before you retry
Repeating the unchanged operation will not resolve this condition. Complete the steps above first. Resend in Inbox creates a new message; use it only when another send is appropriate.