The vessel decides what every bidder must provide. Here's how to see those requirements and satisfy them: sometimes without uploading a thing.
Provide the documents a tender requires so your quote can be submitted.
A tender you're quoting on.
About 5 minutes.
Reflects app v1.5.9
Each tender lists required documents: your Quote (always), plus labour warranty terms, parts warranty terms, an insurance certificate, and sometimes a license or certificate: whatever the vessel marked required for this job.

Upload a PDF into each required slot. If a license is required, the vessel describes exactly what to provide, a class approval, a trade certificate, so you know what to upload.

If your quote already states your labour or parts warranty terms, MBN's detection covers those slots automatically, no separate upload needed. One good quote can satisfy several requirements.
A warranty requirement satisfied via quote detection.
If something required is genuinely missing, you acknowledge the gap before submitting, nothing is hidden from the vessel, so your quote is judged with full context.

With your quote and documents in, you're a live bidder. From here it's clarifications, possibly amending your quote, and, if you win, signing the contract.
Log in to see a tender's requirements and satisfy them. New to MBN? Request free access first.