Unable to save campaign (try modifying message settings first)

[DavidL503]

How can I resolve Unable to save campaign (try modifying message settings first) I see that others posted as well. And some are marked resolved - but there isn't any indication as to how it was resolved. Please advise

[William_A]

Hello @DavidL503 ,

When you check the postal code in your email's footer, try clearing it out and then re-typing it to see if there was an erroneous space of unsupported character. You may need to check your account's settings as well, to make sure the postal code is correctly entered there as well.