WordPress permalinks

Read it:

https://matty.co.za/2009/11/custom-url-rewrites-in-wordpress/
https://codex.www.ads-software.com/Class_Reference/WP_Rewrite

it seems to difficult for such a simple task and i still cant understand why all other links are fine except these created from the <form>

What do you do? This form the affiliate is who fill? If I understand you need create a rewrite rule to redirect when the form is filled.

Explain all steps (scenario) of the process.

i want only add the email filled in the form behind the link i mentioned above.

You pretend use something https://affiliatelink.com/email ?

yes, I also understand it this way.

https://affiliatelink.com/?ID=email
to
https://affiliatelink.com/email

wordpress default rewrite rules won’t take care of this.
You need to add a custom rewrite rule to your htaccess file.
sorry but I`m no pro with htaccess rewriting. Maby somebody else can help out here?

exactly!that’s i’m trying to do but unfortunately i don’t know how to do.

You don’t need insert it in the .htaccess, the right way is use how the links that i passed above. To test the rewrite rules you can use this plugin:

https://www.ads-software.com/extend/plugins/monkeyman-rewrite-analyzer/