Managing Duplicate Type Marks

A common Revit Warning relates to Duplicate Type Mark because most databases, including COBie require Type Marks to be unique. Removing duplicates is good database protocol and it improves file performance.


Here are the steps to remove duplicate type names from your entire Revit project using Ideate BIMLink:


  • Launch Ideate BIMLink; select “Load Sample”
  • Set the Source directory to the "Quality Control" folder
  • Select the "QC-MC-Duplicate_Marks_Type" link
  • Export the values from Ideate BIMLink to Microsoft Excel
  • This is a multi-category that includes the categories specified on the Category tab.
  • Select column E (Type Mark) in the Excel file. From On the “Styles” tab on the “Home” tab, highlight duplicates using the Conditional formatting option. NOTE: For the purposes of the Warnings, Revit does not care if there are duplicates across categories, for example, a Door and a Structural Column may have the same Type Mark value.
QC - Duplicate Marks
  • The Excel file will be sorted by “Category” and then “Type Mark” value. Scan the list for highlighted items and see if there is a duplicate within that same category. Duplicates should be above or below each other, as shown.
Duplicate Marks in Excel

Explore recent posts

15@15: Effortlessly Eliminate Imported Revit Clutter
April 21, 2025
TRAINING - VIDEO | Simplify Revit object style management with Ideate StyleManager. Easily analyze, rename, merge, and remove imported styles from CAD links and exploded files. Keep your projects clean and organized with Ideate StyleManager.
15@15 Training Series: Spruce Up Your Revit Material Management
April 7, 2025
TRAINING - VIDEO | Struggling with messy Revit materials? Clean up and optimize your material and appearance assets with Ideate StyleManager. Learn how to analyze, rename, merge, and remove unused elements to keep your projects running smoothly.
15@15 Training Series
March 31, 2025
TRAINING - NEWS | Leveling up your BIM game with Ideate Software doesn’t have to hard or time-consuming with our 15@15 Training Series. This series of 15-minute online sessions cuts right to the chase with essential information to enhance your skills, unlock new efficiencies and elevate your ability to automate tedious tasks —all while reducing errors in your Revit model.
15@15: Elevate Your Title Block With Style
March 26, 2025
TRAINING - VIDEO | Is your Revit title block a mess? Inconsistent styles can slow you down, but Ideate StyleManager can help. Discover how to clean up and streamline your title block for a more efficient workflow.
Show More