The enquiries extension can be used to record questions raised during a contracting process, and the answers provided.
To use this extension, add this URL to your package's extensions array:
Maintained by Open Contracting Data Standard Extensions
You can download the +partyRole.csv file in English.
The extension adds these codes to the partyRole.csv codelist.
A party who has made an enquiry during the enquiry phase of a contracting process