New to this so ELI5 please. I'm trying to test an email with the following script but the test email never arrives to inbox (while selecting a test Data Extension).
%%[ SET @Phone = '123456789' SET @callURL = CONCAT('tel:', @Phone) ]%% <a href="%%=RedirectTo(@callURL)=%%" alias="phone">
If I remove the script, the test send arrives fine. If I remove the Data Extension I get the following error message:
Emails containing subscriber specific AMPscript cannot be sent without selecting a subscriber in Test Send. Remove the AMPscript from the email or select a subscriber to preview and test send.
Any ideas why?