In this support article you can find the steps to add a tenderer (supplier/vendor) from scratch to a results notice 

Note: With in the notice editor tenderer refers to any organisation alone or as part of a group which submits an offer, aka as supplier.  

To add a tenderer.

While in the Results form:

  1. Click Organisations on the left-side menu.

  2. Click + Add organisation

  3. Select Tenderer under the Type of the organisation’s options

  4. Fill in the mandatory information marked with an *

  5. Click Tendering parties, on the left-side menu.

  6. Click +Add tendering parties

  7. Select a tendering party in the dropdown menu on field Tendering party members (OPT-300).

The filled-in information has been automatically saved. You should be able to see the Tenderer added under the list of organisations and also added on the list of Tendering parties.