In order to customize the notifications to your business' preference, log into your account.
Once logged in navigate to Manage Account.
Selecting the Main (Parent Category) will select all sub Categories in the group.
To de-select all categories, select the main Category check box.
Select only the sub Categories of your choice.
Review all the categories.
If you feel that you are not getting enough notifications consider broadening your selections of categories.
If you feel that you are getting too many non-relevant notifications consider narrowing your selections to more specific categories.
You may receive email notifications for a category that you selected however the bid is not reflective of that category - this happens when the Organization/Agency selects something that may not be relevant to the category but was selected in the posting process.