A completion certificate is the document a platform issues to a learner who has satisfied the conditions for finishing a course or passing an assessment, such as reaching a minimum score, viewing all required content, or completing a practical project. Certificates range from simple PDF files with a name and a course title to cryptographically signed digital credentials that third parties can verify without contacting the issuer. A traditional PDF certificate is convenient but trivially forgeable; moving to Open Badge or Verifiable Credential formats adds tamper-evidence and machine-readable structured data about what was learned and how it was assessed. For regulated industries, certificates often carry an expiry date tied to recertification cycles and need to be stored in a learner record system that supports audit queries. The distinction between a certificate of completion (attendance-based) and a certificate of achievement (performance-based, requiring a passing score) matters to employers and auditors, so issuers should encode that distinction explicitly rather than using a generic label. Integrating certificate issuance with an LMS via LTI grade passback or an API ensures the credential is generated consistently and tied to verified completion data rather than manually issued. Building in automated revocation or expiry notifications removes a common administrative burden and helps learners stay compliant with recertification requirements.