When you are launching multiple versions of the same campaign, you may want to rename them to keep track of the different versions. However, keep in mind that this is an internal change only. Your subscribers won't see the name change at all.
Go to My Campaigns from the toolbar on the left-hand side.
Find the campaign you want to rename and click on the button with the three dots on the right side of the campaign.
Click on the Rename button.
Enter the new name for the campaign and click Save.
You can also rename the campaign from the campaign personalization page by hovering over the campaign title at the top of the page and clicking on the pencil icon. Enter the new name and click Save.
All set! You have successfully renamed the campaign.