You can supplement the tender in two different ways depending on the prevailing conditions.
1. Supplement an already sent requests where the tender period has not yet expired.
Go into the tender process on the current tender and click on the "Tender" in the horizontal menu at the top edge, and then on the "Send bids" in the lower menu. Now click the "Resume tender". You can now enter the tender process during the step "Contract noticer" for editing the structured documents and stage "Attach Documents" to upload files.
Do not forget to send the tender by going to step "Send bids" and click "Submit tender".
2. Complete a sent tendering the tender period has expired
Responsible procurer first must enable the ability to upload documents if the tender period has expired. Go into the tender process on the current bids and go to phase "Supplement" and the step "Attach documents". Select "Attach document" and upload additional files. These are now available to the procurer.