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.