Hello @user443061 ,
You'd either need to recreate the event and use that one's landing page, or you'd need to manually add the standalone landing page's link to emails, social posts, etc.
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Hello @user443061 ,
There wouldn't be any method of them submitting this as part of the registration - either they would need to send it to you outside of the system and you respond by providing a discount code, or you'd have to provide the discount code another way.
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