Set automatic workflows

reading maybe I can solve my problem with workflows, who can help me?
I need to update a field in Leads (lucadc_c) that takes the event start dates.

I attach the screen of my workflow, who can help me?

You don’ say what happened. Did it work?

prg i’m desperate, it doesn’t work, i’d rather do it with hooks but i can’t in any way

I’ve seen your other posts, and there is a reason why you’re not getting answers… your posts are incomplete, you don’t give sufficient information, and when people ask for it (see above) you still don’t add anything relevant…

Please see this topic:

I am here to help, but you need to help us help you :wink:

as required use:
Centos 7
PHP 7.3.11
thank you all