Sometimes you need to specify the format in which vendors may submit their answers. For example, when asking each vendor to provide last year's revenue figures, it is easier to compare answers if the currency and format are the same across vendors.
To help with this PostRFP supports "input masks" on text input fields. Some masks are provided by default:
Custom formats can be defined using regular expressions. For example, you might want to specify that a given field must contain a valid website URL.