You have a form on a modal page and after submitting the changes you want to a message to be displayed. Something like “The changes have been processed“. How can you do this?
Go to the properties of the form process and enter a success message.
Delete the close Dialog process
Go to the after processing and create a branch to the page you want to go to after page submit.
That’s it. It is the close dialog process that doesn’t work well with a succes message, so if you use the alternative method the problem is solved.