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[user652892]

I CHANGE ALL THINGS BUT STILL THERE IS ERROR... WHY THERE IS NO NOTIFICATION ABOUT ERROR? JUST SAY LIKE THAT OH SORRY ADRESS WRONG OR SOMETHING !

[William_A]

Hello @user652892 ,

When and where are you seeing this error? I went to schedule your email to see if I could recreate what you're describing, and it scheduled without any issues. Did you resolve the issue after posting this?

[JeanC245]

I am facing the same issue when trying to create Welcome Email, here is the screenshot of the error 

[Caitlin_M]

Hello @JeanC245. I see you chatted with our support team this morning regarding the error. It looks like you were able to create a welcome series that allowed you to schedule the email. I brought the error up to our upper level of support and they're going to review this further.