Hi Katarina,
When using the {[E-MODIFY REG LINK]} data tag in an email, attendees will be prompted to enter in the confirmation number and then it brings them to the post-registration page by default, but they have the option to click on the summary, agenda page, other website pages, etc. from within the top navigation. We do not have a way to adjust the page it brings them to by default when logging in with their confirmation number as this post-registration page is the page that has the modify registration widget on there if you are using it.
As an alternative, you could use the {[E-HOMEPAGE LINK]} data tag in the confirmation email instead and that will open up the summary/landing page of the event website by default for attendees to review and if they do need to modify their registration, then attendees can click on the already registered? link and enter in their confirmation number and modify from there. Data Tag Cheat Sheet
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Julia Plymack
Senior Customer Success Manager
Cvent
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