You can create a test offer in your tender to view your tender as a supplier would. For this you must have the right to create test offers. The Lead Buyer of the tender can set this for you.

In your tender, go to the Offers & Aplications tab and choose the ''Add'' button in the lower right.
You can now complete your created Questionnaire and Price List and submit the offer.

You now see the tender from the same environment as a provider, but with the rights for you as a buyer. This means that visibility settings that you have adjusted for providers do not apply to you in this environment. To check the visibility of settings for providers, use the Preview as Provider button from the questionnaire.