Error message: Wix code SDK error: The url parameter that is passed to the to method cannot be set to the value ....must be of type string

Looks good!

  1. β€”> this is clear for me
/edit-product-detail/
  1. but β€”> ${title} <<β€” never understood this one :grin:
  2. and the additional β€”>

How to explain that?

That happens, when you never use β€”> dynamic pages :grin: