You need to declare a List of IntegrationArtifact before your loop
after your restcall(in the loop) you do another loop, this time over the results of the restcall (RestResponse)
in this loop you add each iteratorRestResponse in the list you created before the loop.
then you can just right click the list before the loop and selct:
set $ListName as return value
Thanks for your advice. Do you also know why my data grid shows no information? Did a missed a step in the microflow? The response handling of the REST is apply import mapping
This is my microflow now: