Begin with the current EAD expiration exactly as shown on your document. Add the extension application's USCIS received date as a separate event. Seeing both dates helps you explain how long the application has been pending and where that waiting period falls relative to your existing OPT authorization.
Keep the school recommendation, filing evidence, and USCIS notices together. A simple date log can reference each document without copying sensitive details into the tracker. When your DSO or employer asks for an update, you can quickly find the relevant notice and describe the latest event in the application.
Add official updates as they arrive, including any evidence request, response, decision, card-production message, and mailing information. Give each event its own row. This makes the sequence easy to review, especially when an application spans several employer check-ins or a later Premium Processing request.
After approval, follow the new EAD's production and delivery. The approval date and card-arrival date represent different stages, so keep both in your notes. Once the card arrives, review its details with the appropriate school or employer contact and complete the document-update steps relevant to your situation.