Hi Rob,
There are 2 answers here - which are two different approaches, and are unrelated to each other.
1. You're thinking about it backwards. The URL for the Save button is set when the form is generated. So you can't make a decision "after they press save". What you can do is make a decision _inside_ the target. So, for example;
Form A calls NetWebPage B when Save is pressed. NetWebPage B decides at that point which form to include. It doesn't "redirect" to the form, it just _includes_ the form. However you need to be careful with this approach because it's easy to use a Value when a session value is required.
2. Since the Save is calling a "chained" form, simply allow the form to include _all_ the possible fields you want. You can group the fields onto tabs. Then using the SessionValues set by the Form A, you can decide which _tab_ of B to display. This way you don't need to decide _which_ form to display, you just need to decide which tab to display on the form. This has the benefit of keeping all the form fields together, and you end up with fewer procedures in your app.
I recommend the second approach.
Cheers
Bruce
Cheers
Bruce