User has set the rule, Memo is required for time entry; however, the memo on the time entry screen is already populated with a description.
This happens if the memo is added to the activity item in the time entry. By design, the memo comes automatically from the Activity Items screen to Time Entries, irrespective of whether the rule Memo is required for time entry is set or not at the project level. If there is no memo added to the activity item, BQE CORE will prompt you to add a memo in the Time Entries screen and will not allow you to save the time entry without adding the memo.