You can use an On Change event for this with a Nanoflow or Microflow action. That should give you enough control over the data to add the selected value.
The parameter for a Dropdown On Change event is the selected item
Hi Ricardo Cervantes,
I think for this, you want to save it on Submitting I guess.
Is it right?
If it is, then On submit of the form with the dropdown you can call a microflow. So that every tym the submit button is triggered then you can submit and store it in Non -persistent entity