Cuyahoga Community College went live with Banner in 1996 which included a basic update of its legacy chart of organization codes. However, continued growth and expansion of the College stressed the chart: we were running out of numbers; original logic had been lost; the ragged hierarchy made reporting difficult; and most importantly, several key initiatives were dependent on a more robust chart. A cross functional team was formed to identify requirements for a new chart and the project was rolled out. A scan of our database and business processes showed Orgn Code usage was wide-spread, so we had to carefully plan and coordinate the change on a tight schedule. Other than agreeing on the new chart structure, the two key areas requiring the most attention were labor distribution and purchase order accounting. Programming was used to facilitate the changes, where possible, but some functional changes were required. We will describe how we made these voluminous changes timely and seamless for the end user. Experienced users considering changing an element of their chart or new users hoping to avoid our pitfalls will benefit from hearing our experiences, successes, and improvements.