In Omnium, you have the option to include various reasons for order returns, allowing you to choose from them when needed. To add different return reasons, follow these steps:
1. Click on configuration -> Settings -> Orders -> Return settings
2. Add an ID and a return type reason. You can change the name of the return type under language later.
Note: Once a return type is added, selecting a return type becomes mandatory when creating a return. If you do not want to require a return type selection, avoid adding any types in the Return Settings.