Hypothetical: a service business changes the email address for its WordPress contact form. The form still says 'sent', but new inquiries stop reaching the team.

Send one test from a phone with a unique phrase in the message. Look for that phrase in the form plugin's saved entries, then the inbox and spam folder, then the CRM. The first missing handoff tells you where to investigate. A success screen alone doesn't prove anyone received the lead.

Which step has failed for you: the form, email delivery, or CRM sync?