Ability for Caregivers to update charts after completion

After caregivers complete their charts, during chart reviews, if we find out that relevant information is not there or they have not charted anything, the agency needs to have the ability to reopen their charts and have them updated it. I had a lengthy conversation with our account person about it. Our previous systems allowed us to do it. The EVV times are locked. So there should not be any issues with just letting them update the tasks when they are not completed. If this would take a while or cannot be done, at least there needs to be an option to add more notes to the specific visit by the caregiver so they can add any missing information or chart based on the compliance requirements.