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Marking.ai Help Centre

My student upload link isn't working

Student upload links usually “just work” — but if a student is reporting trouble, here are the common causes.

Open the link’s dialog from the assessment (Upload submissions → Student upload link mode). Look for:

  • Status — is it Active, Expired, or Revoked?
  • Expiry date — has it passed?

If the link is expired or revoked, click Extend or regenerate the link, then share the fresh link with your students. See Student upload links.

Step 2: check the file your student is trying to upload

Common reasons an upload fails on the student’s end:

  • File too large — individual files are capped at 50 MB
  • Wrong format — PDFs and common image formats only. Word documents won’t work.
  • Browser quirks — ask the student to try a different browser or device

Step 3: check the student’s name field

If the student got an error after typing their name, it might be because:

  • The name was left blank — the form requires a name
  • A character was unsupported (rare — emojis, very long strings)

Step 4: check your school’s network

If students are uploading from a school network, the network may be blocking outbound uploads (especially for very large files). Suggest they try from a different connection (home, mobile data) to test.

Step 5: get in touch

If you’ve checked all the above and uploads are still failing, drop us a line at connect@marking.ai with the link and a description of the error. We can investigate.

Need help?

Click the chat icon in the app or email connect@marking.ai.

FAQs

Most likely it was revoked or expired. Generate a fresh link and share it again.

My student uploaded but I don’t see the submission.

Give it a minute — there’s a small processing delay. Refresh the submissions table. If it’s still not there after a few minutes, get in touch.

We don’t track click-throughs, but uploaded submissions show with the name the student entered.