# KillDuplicates

The value to use for the `KillDuplicates` action parameter when an index action is sent to IDOL Server to add new documents. If you do not set this parameter, the `KillDuplicates` action parameter is not set.

`KillDuplicates` determines how IDOL identifies and handles duplicate documents. For information about how to set this parameter, refer to the IDOL Server Reference.

Type: | String
Default: |
Required: | No
Configuration Section: | Any section specified by `IndexerSectionN` or Indexing
Example: | `KillDuplicates=REFERENCE`
See Also: | KeepExisting

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