How to Change Field Label Created by Managed Packages

When you install a managed package app into your Salesforce instance, you cannot edit the label of the fields. If you click the Edit button, both Field Label and Field Name are disabled.

1. Navigate to Setup - Translation Workbench - Override

   

   

2. It will show all the custom fields for that object.

3. Double click in column 'Field Label Overwrite'

   

4. Click Save.