Made a mistake in your bid? corrections and corrigenda explained
You spot a wrong figure minutes after submitting, or the buyer changes the scope after you've bid. Both are common — and how much you can do about it depends entirely on one line: the submission deadline.
Before the deadline — you can usually fix it
Until the tender closes, e-GP generally lets you modify, withdraw and re-submit your bid. If you catch an error in your rates, an attachment or a form before closing, correct it and re-submit — the last valid submission before the deadline is the one that counts. This is exactly why you should submit early and review, leaving a buffer to fix anything.
After the deadline — you generally cannot
Once the tender closes, the bid is locked. You can't amend a price, swap a document or "explain" an error — doing so would breach the fairness the process is built on. A mistake discovered after closing usually can't be undone. Prevention is the only real remedy, which is why a pre-submission checklist matters so much.
Corrigenda and amendments — when the buyer changes things
A corrigendum (amendment) is a change the buyer issues to a live tender: a revised specification, a corrected BOQ, or — very often — an extended deadline. These matter enormously:
- An amendment can change what you must bid, or move the closing date.
- Bidders who miss a corrigendum submit against the old requirements — and get rejected.
- Amendments can appear late in the tender window, when you've stopped checking.
What to do
- Re-check any tender you're bidding on for amendments right up to submission.
- Build a review buffer so you can correct your own bid before closing.
- Keep your submission acknowledgement and the version of the document you bid against.
How Tenderytics helps
Missing an amendment is a silent, avoidable loss — so Tenderytics keeps tenders you're tracking current and surfaces changes, and its clear deadline view gives you the buffer to correct your own bid before it closes. Always treat the official e-GP notice and its latest corrigendum as the source of truth.
Frequently asked
Can I withdraw a bid I've submitted?
Before the deadline, typically yes. After it, the bid stands as submitted.
Does an amended deadline give me more time?
Often a corrigendum extends the closing date — but only bidders who see the amendment benefit. Don't assume; check.