# Article-Level Day Zero Certain workflows require granular tracking of regulatory "day zero" (day where information became available for assessment). * As standard, Biologit MLM-AI uses the date the search has run, or search results were uploaded into the system as day zero * It is also possible to track and update Day zero information per article for more granular workflows * This is possible by enabling "Allow Day Zero Resetting" by the Administrator in the [Settings](https://docs.biologit.com/configuration/settings) page ### Enable Day Zero per Article It is required that the administrator user enables "Allow Day Zero Resetting" from the [Settings ](https://docs.biologit.com/configuration/settings)page:

### Events that trigger a Day Zero Update Once enabled users can optionally update Day Zero for an article: * Upon uploading relevant information for the assessment (i.e. upload an attachment from the [Attachments](https://docs.biologit.com/application/article-screening/attachments-and-full-text-screening) tab) * Monitor Administrators can also update day zero as an override ### Updating Day Zero on Attachment Upload This option requires the article to be saved with a **Pending** decision (see [Workflow ](https://docs.biologit.com/configuration/custom-workflows#configuring-workflows)configuration) * When uploading a file, an optional flag to update day zerobecomes available * This will reset day zero only for this article to today's date (date of file upload)

### Updating Day Zero as Administrative Override If necessary, users with "Administrator" or "Work Assignment" [permissions](https://docs.biologit.com/configuration/team-and-user-management#team-permissions) can override the day zero for a particular Article. For these users the day zero widget becomes editable:

And the day zero date can be manually updated:

### Exports In the Excel exports, the following additional columns are available to track by-article day zero * `day_zero_owner`: User who performed the day zero update * `day_zero_set_date`: New day zero for this article * `day_zero_timestamp`: Timestamp when action was performed