While you were doing the takeoff and working up the estimate for a project, you may have duplicated a Bid many times to perform 'what if' scenarios. When you use Digital Production Control, you must use one copy of a Bid throughout the life of the job. You will make one archive copy of your sold Bid and that's it, no more duplicates.
Once a project is sent to the field, do not move the project to a different database or folder, do not copy and paste it, duplicate it, or rename it.
Changes Orders must be created in the DPC project, not the original "sold" project.