Hi @dahlgebra ,
Do you want to get data from one list and update the record to another list?
If so, this is possible.
Firstly, you need to connect your app with these two lists.
Secondly, set the form's data source to the list that you want to update to.
Thirdly, unlock the field that you want to be linked up to another Sharepoint list.
Customize this field. For example, insert a drop down in the datacard, set the drop down's Items:
Distinct(linked list,filed name)
Do not forget to customize this field's datacard's Update property.
You need to fill in formula based on field data type that you want to get data from and the field data type that you want to update to.
If you still have problems, please tell me the fields data type in two lists , and what data that you want to display in that particular field ?
Best regards,