This issue is caused by an empty text field in the Groupon integration settings. Follow the instructions below to resolve this issue.:
- Click the App Drawer button .
- In the App Drawer, click Setup.
- On the Setup menu, click Integrations.
- On the Integrations menu, click Groupon.
- Click the Groupon deal that is not appearing in the Sales with Revenue Categories Report.
- In General Information, under GENERATED REVENUE, enter the revenue provided to your business when the Groupon deal is purchased.
- Click SAVE. For more information, see Groupon deal general information settings.