LSA Opportunity Mass Update Alert Email Sent without Trigger

In some situation, user can get email alert from automailer@netsuite.com with subject: Mass Update Failure: LSA Opportunity Mass Update.

The email says:

The feature Opportunities required to access this page is not enabled in this account.

Reason for this situation is that the Scheduled Mass Update related to Last Sales Activity bundle tries to update Opportunity records in order to update Last Sales Activity field, however, Opportunities as a feature are not enabled in that account.

To resolve this issue, follow these steps to disable the Scheduled Mass Update that is not necessary:

1. Navigate to Setup > Company > Enable Features > CRM subtab.
2. Check Opportunities. 
3. Click Save. (Note: This step is temporal but necessary in order to access the mentioned Mass Update).
4. Navigate to Lists > Mass Updates > Saved Mass Update and click on LSA Opportunity Mass Update.
5. Click Schedule subtab
6. Uncheck Run Update According To Schedule.
7. Click Save.
8. Navigate to Setup > Company > Enable Features > CRM subtab.
9. Uncheck Opportunities.
10. Click Save.

After that, the email alert will not be sent anymore.

If the Opportunities would be enabled in the future, the LSA Opportunity Mass Update should be enabled again.