Confirm that all your recommenders (counselor and teachers) have access to Common App or the appropriate portal for submitting letters. Do this in September, before any deadlines.
Recommendations submit through portals, not the student directly. If the recommender doesn't have access, the letter cannot reach the school. Deadlines can be missed.
Login to Common App → Recommenders → Add teacher:
Provide:
Most counselors recommend waiving your right to read letters:
If no teacher works:
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