Duplicate event exists

The returned message Duplicate event exists: specify index for EventName indicates that the parent event in this worksheet row contains more than one child event named EventName. To resolve, change the specification of the Compare Events function to use an indexed version of the event for the attribute displayed in this column.

When a parent event has child events with duplicate names, PI DataLink automatically adds an index to the child event name in the Add Attributes window. If other events at the same level do not have duplicate names, they will not have the index. For more details, see Add child-event attributes as columns in the Compare Events task pane.