Let’s keep this simple.
The purpose of a certificate is to educate you on specific learning objectives and assess you on the attainment of those objectives. You must participate in learning event(s) and pass an assessment demonstrating achieving of program learning objectives. The result is a certificate that does not expire and has no continuing requirements.
The purpose of a certification is to assess your current education, experience, knowledge and skill. Therefore, you must meet eligibility requirements and pass an examination demonstrating current knowledge and skills as defined in the test content outline. The result is a certification that also requires meeting the ongoing requirements such as continuing education at specified intervals and adherence to the code of ethics.
Certificate = engaging in learning events and successfully completing the assessment; no additional requirements
Certification = meeting eligibility requirements and obtaining a sufficient score on the exam; additional ongoing requirements