GTY and onboard booking

[DizMagic]

What are the "rules" for booking a GTY onboard. Do you still get additional 10% off and onboard credit?

 

[PrincessShmoo]

What are the "rules" for booking a GTY onboard. Do you still get additional 10% off and onboard credit?

Last minute *GT (IGT, OGT, VGT) rates are not eligible for OBB perks.

Now, if you're asking about a "regular" GTY (where you actually select a specific category), I believe you can do that.