I am looking to append an Id to the end of a url link that will take the user to a specific page depending on their unique Id. I am able to gather the Id within the sending data extension and I am currently using personalization strings to accomplish now (https://m360acceleratorhealthcare-dev-ed.my.salesforce.com/%%Id%%).
Additionally, I will need to direct a user to a different page if they are already signed in, would an IF statement work? Also, would I need to use the Redirect or would personalization strings still work, given that the Id we need to append is in the sending Data Extension.