Providers can ask questions to help them prepare their proposal. When your answer provides extra information to the RFx, make the answers available to all providers so no one gets an unfair advantage.
Suppliers and providers can ask questions about any notice of procurement.
It's usual to close questions about a week before the RFx closes, so you have time to answer them and suppliers have time to reflect those answers in their responses.
Respond to questions:
If your answer provides more information than your published documents and could be of value to other providers, make the answers available to everyone so no one gets an unfair advantage. Usually, you'll publish questions and answers as supplementary information on GETS.
If you're not using a tender management system like GETS, you can use a spreadsheet to create a log to document questions.
If a supplier's query is about information that's commercially sensitive, it's up to them to make this clear. Any information that is commercially sensitive must be protected and not released to any other supplier - you might decide not to publish that question and answer, or to remove the part that's commercially sensitive before you publish it.
You can also hold a briefing session for suppliers and providers at the start of the RFx process, where they can ask you questions. You can brief them individually or as a group.