How do you manually regenerate a form in Oracle Apps R12.

1. Check the FORMS_PATH env variable. Assuming these are US forms the FORMS_PATH should include
$APPL_TOP/resource and $APPL_TOP/forms/US.

2. To compile a form manually from the command line try either of these two command line arguments (replace FNDFBMAS.fmb with the form of your choice.):

frmcmp.sh module=FNDFBMAS.fmb userid=apps/<apps password> module_type=form batch=yes compile_all=yes

frmcmp_batch module=FNDFBMAS.fmb userid=apps/<apps password> module_type=form batch=yes compile_all=yes