How to modify Activity ID Suffix in Primavera P6

In Primavera we can use ‘Renumbering Activity ID” function to modify Activity ID Prefix. How about we want to modify Suffix.

I will show you how.

We have a simple project with default activity ID like this


First we go to Tool -> Global Change


Click on New button


In “Then” section:

  • In Parameter select “Activity ID”
  • In Parameter/Value select “Activity ID”
  • In Operator select “&”
  • In Parameter/Value select “Custom”


Then enter the Suffix you want to add. For example “FDN”


Click on “Change” button.


P6 will show you a preview of the change. Click on “Commit Changes” button.


Now you can see there is “FDN” letter in your Activity ID.



Author: Khuong Do

Khuong Do is a Project Planner / Construction Claims Consultant / Delay Analyst in Civil, Transportation and Oil & Gas Industry. He has worked as a Primavera Consultant Specialist since 2006 . He holds a Civil Engineering degree and a Bachelor of Information Management System. Now he is working in SGC company, providing Delay Analysis service. They have offices in Beijing – China and Dubai – UAE.

2 thoughts on “How to modify Activity ID Suffix in Primavera P6”

  1. I use ‘user_text’ field as a variable then export Activities to Excel spreadsheet. Then build new activity ID’s in ‘user_text’ and import back into P6. Now global change saying: activity ID = user_text


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