RegExp: Error (.*) Cannot change type due to existing data
Resolution
It is usually not recommended to change types of fields, but if it's really necessary you can:
- Manually change the type of {1} in the target org
- If you can't manually change the type:
- you may modify the dependencies (Formulas, Flows...) using {1}, so they don't use this field
- you can also delete dependencies (Formulas, Flows...) using {1}, but make sure they are deployed again later
- More help: https://help.salesforce.com/s/articleView?id=000327186&type=1