in 1.0 suitescript, netsuite has a suggested way of dynamically generating URLs which uses the "external url" field on a suitelet. however, with the transition to account-specific domains, it appears external URLs haven't updated to reference the new domain (it still says na3.netsuite.com or whatever instead of XXXXX.app.netsuite.com). so any 1.0 scripts that were set up to dynamically get a URL aren't working after that transition to the new account-specific domain.