<p>Because the change felt small when it was made and is expensive by the time the field finds it. Nobody told the duct trade the beam moved, and a spreadsheet or email thread has no way to know.</p> <p>BidLight closes that gap:</p> <ul><li>Publish from Revit or Navisworks. Each publish is a versioned snapshot with its own files, author and milestone.</li><li>Compare any two revisions. Steel, MEP, envelope and interior changes are separated by category, so a beam swap does not get buried.</li><li>Pin an issue to the changed elements. It carries the sheet and revision it came from.</li><li>The owner sees it in their 6am digest the next morning.</li><li>Close it only with a screenshot, a tagged user and the linked model commit.</li></ul> <p>The real cost of an unflagged change is rework that is wrong before the ink dries. A clash caught in the model costs about $50. The same one found in the field costs $5,000 to $50,000, and the crew stands idle while it is sorted out.</p>