<p>Give the conversation a single record. Ping-pong happens when each side keeps its own version: the design changes, a trade re-checks, replies, and by then the design has moved again.</p> <p>BidLight runs inside Revit and Navisworks and ends that loop:</p> <ul><li>Publish the model. No separate files to email, no re-entering data.</li><li>Every publish is a versioned snapshot, so both sides can point to the same revision.</li><li>Compare it to the last one, element by element, by category.</li><li>Pin issues to the elements concerned, with the sheet and revision attached, and tag the owners.</li><li>Close each with a screenshot, a tagged user and the linked model commit.</li></ul> <p>The trades see what changed in their 6am digest, so they respond to the current model, not last week&#39;s.</p> <p>Teams lose about 11 hours a week working out which version is current. Remove the argument about the version, and the replies get shorter.</p>