What must be done if you want to keep manual edits on a tag from being lost during reimport?

To keep manual edits on a tag from being lost during a reimport, it is essential to set the tag's Current Editor to Historian. This step ensures that the Historian has control and is acknowledged as the source of truth for the tag. When the Current Editor is set to Historian, any manual changes made to that tag are preserved, allowing the system to recognize these alterations and prevent them from being overwritten or lost in the event of a reimport.

This approach focuses on maintaining the integrity of the manual edits while still allowing for the flexibility of reimporting data to update other aspects of the tags. In contrast, configuring the tag's settings to default or ensuring it is inactive does not provide a safeguard for manual edits during reimport operations. Likewise, prioritizing the import order is more related to the order in which tags are processed and does not directly influence the retention of manual edits on a specific tag.