TravelgateX is a bridge, a by-pass between the systems of Buyers and Sellers, committed to 100% transparency on all the connections. Our objective is to ensure our Partners always receive the native information as sent by the Seller without any modification.
In this case, through the Room List query, you'll be receiving Seller native room codes, so you can map them along with the Seller if needed.
Please note that If you are using our Hotel-X API, you can upload your own mapping files to our FTP (credentials must be provided by our Customer Care team), and we will use your room codes in the booking flow. To upload your codes to the FTP, please follow the guidelines described here
*Mapping should be done either internally or externally on your side, we don't perform mappings for our Partners.