For continuous sum, you have max value and an over trigger, and a value must equal max.
When the total is over the max, a custom error message is generated as it should.
However, when all the fields have been entered and the total is *below* the must equal value (e.g., total fields must equal 100%), there is no inpage error message. Instead, an “error on this page” flag comes up when clicking on next page. There is no indication of the error, and the continuous sum fields are not even highlighted, so the user has no idea what caused the error.
The must equal max should trigger the inpage custom error message when the total is *below* the max as well as above.