Hello @CatrineF2 ,
You can either:
Link to an inline form you've added to your website, with multiple list options enabled for them to select from.
Make sure the Update Profile form is enabled in your account, and draw contacts' attention to its placement in your footer. The lists you select for the UP form will also show when a contact attempts to unsubscribe, in case they only wanted to unsubscribe from particular emails.
Create separate lead generation landing pages for individual list options, and link to those individual LPs.
See also:
Text links
Image links
Button links
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