The Question Library allows you to create and maintain a collection of commonly used questions that can be added to SOW Bids.
Questions can be added manually to an SOW Bid.
![screenshot of an SOW Bid showing the questions for IT Experience and Experience in Industry on the question tab] screenshot of an SOW Bid showing the questions for IT Experience and Experience in Industry on the question tab]](https://learning.sap.com/service/media/topic/f48f5162-ab70-4b8e-9b0a-67a0a73f6906/FG200_2411_en-US_media/FG200_2411_en-US_images/Questions.png)
When questions are included on SOW Bids, suppliers answer the assigned questions when responding to the bid. The answers provided by the suppliers are used by the buyer to evaluate them.
Using questions on an SOW Bid is optional, and question libraries are not required: questions can be added manually to an SOW Bid.