I think I may have botched cabinet cutout for sink

Hi all

Been slowly getting the cabinets and plumbing in place for kitchen island which is from Howdens

Decided to cut a Howdens 1000mm wide base cabinet so I could figure out where the undermount sink sits roughly so I can then get the pipes and wastes in or arround the right position......but think Ive gone too close to the front edge

Ive basically gone about halfway into that vertical support bar in the front

Im now thinking of getting a new cabinet from Howdens and starting again -...

I think I may have botched cabinet cutout for sink