I appreciate the effort of coming into this forum, Dhal700477.
For me to fully address your concern and provide you with a detailed resolution, may I know the specific goal you're trying to acquire? Do you want to mark W-2s Action as completed for forms filed outside in QuickBooks Online? If not, are you still in the process of filing W2 forms outside of QBO? You can also share the necessary screenshots for us to have a visual reference on your end.
Any additional detailed information is much appreciated, as this will help me verify I've got the proper workaround for you.
I'll keep this thread available, so you can always reply in the comments below for any added information about your concern. I'll make sure to get you covered. Keep safe and have a good one!
Hello Dhal700477, it's great to see you in the community! I would like to provide some insights regarding the matter at hand.
To clear the notification for a specific task, you only need to archive the W-3/W-2s form. You can easily locate the forms that are showing as overdue. If you have the option to File now, you can click on it to archive the forms. This will clear reminders from showing on your end.