We have to create a custom unsubscribe page in Marketing Cloud and we would like to know if it's possible to pass information from one page to another using AMPScript.
On the first page, the customer will fill in the publication list that no longer wants to receive notifications. After he clicks on the next button, a call will be made to unsubscribe that contact from the respective list in Marketing Cloud and on the next page he must fill in the reason for having done the unsubscription. After he fill in the reason for having done the unsubscription, another API call will be made to add the value populated on the second page in a field in a Data Extension with the SubscriberKey passed in the link.
As this set of pages will be filled out after receiving an email by the tool, we want to make sure that the SubsbriberKey informed in the page link and the information that will be passed in the content of the page will be transferred from one page to the other after making the steps already informed.