Hi I need an help how to reduce a package to package spacing error on Allegro 17.2 anyone kindly explain in detail thanks in advance
Well, in both Orcad and Allegro, you can turn Placement Boundary DRC off completely in CM (to just show DFA issues).
If you have Allegro (you should see Flowplanning icons in the menus), you should ask if Design for Assembly is set up company-wide and who has the current rule spreadsheet.
In Orcad version of Allegro, Orcad flags any contact or overlap of the Placement Boundary shapes. DFA is the package-to-package distance-based checking that isn't part of Orcad.
Watch this video https://www.youtube.com/watch?v=aH61XLZOS-Q&t=16s at about 3 minutes it discusses place bound DRC errors but worth looking at the complete video