1. In Administration page, click Globally change records.
  2. Select the Accounts option and click New Change.
  3. On the General tab, select Class
      Operation: Replace
      Replace: Class A
      With: Class B
    • Click OK.
    • Select the Filters tab and define any applicable filters.
    • Click Preview Changes to view which accounts will be changed.
    • After confirming the preview is correct, click Change Now.