Hello.
Since March of this year, the city of Cuxhaven has been using a defect detector that we developed with Survery123. https://experience.arcgis.com/experience/d62ffdaf1d154d31be56f5e1edeee1fb/
This was very well received by the citizens and has been used regularly since then. Our defect detector has a longer workflow in-house. That's why the development took over half a year. The internal defects + Reports are automatically exported to a SharePoint list via Microsoft Power Automate (Flow). The data is then distributed to the appropriate employees in our Enaio document management system using an ArcGIS Online WebApp OK. Only then will this be released for the citizen information dashboard.
Now I received a request from the company asking whether it would be possible to change something in the category. A category should be deleted and a new one added. Note: This is a drop-down field where the different types of defects can be selected by citizens:

Unfortunately, I don't know whether it's possible to do this without breaking anything. The defect reporter is simply too important, too complex and already has almost 500 entries. Therefore, I would like to protect myself properly and rather ask here what is possible.
- Can a selection field from the dropdown be easily deleted? What happens to the existing data received via this field?
- Can another selection field be added?