My today's Leads is completely blank. As for step 101, here is how I type in "https://webto.salesforce.com/servlet/servlet.WebToLead?encoding=UTF-8%22method=%22POST%22&old=00D4T000000DeNb&first_name=En-Chi"
Help Forum
Sorry you're stuck but there's almost always a pretty easy fix! Don't try to start all over again–not necessary! Don't start undoing stuff and don't uninstall Max's Pitch Package, etc.
There's a 95% chance the same snag/fix is listed & answered in the Help FAQ. Check that first but if you can't find it there, post your problem + a screencap in the proper category below & we'll post a solution back ASAP!
Ok, so computers are super-picky. You have to get every single character right for this part.
In the URL you're showing, you typed "old" (like old person) instead of "oid" (like Org ID). Change the "l" to an "i" and it will work
Thank you very much