If something changes in your schedule which means the journal needs to be updated, we will notify you by turning that month from green to yellow in the schedule view (see May):
and there will also be a banner warning you something has changed and needs to be updated when you open up the journal:
Once you have reviewed the changes and you're happy everything is now correct, you can simply open up the journal and click the Update button. The date and time stamp will be updated to reflect the updated posting and the month will turn back to green:
Note: if your period is locked you will only be able to update a journal posted as draft unless you unlock the period. For more information on how Mayday Accruals interacts with Locked periods, see this helpful article