WebMashup is typically used the other way around (if you want to embed a Pega 7 app into an existing 3rd party web app)

But the answer your specific question, you do not have to incorporate such a design for that use case. If you'd like to include Google Map, take a look at the pxAddressMap control.

https://docs.pega.com/using-address-map-control

if you would like to display google maps within Pega, its pretty straight forward.

Simply search for "google" and open the Dynamic System Settings rule, add the key and save it

Now create a section and add the "Address map" (under Advanced options)

Thanks for your answers.

But how can i include/intecreate a custom webapp (not Google maps)?
Is this possible?

Hi,

Kindly check below link. It may be helpful.

https://collaborate.pega.com/discussion/pega-web-mashup-iac-and-browser-backforward-navigation-button-behavior