# KeepExisting

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

`KeepExisting` determines how IDOL handles documents when a document sent for indexing matches a document already in IDOL. For information about how to set this parameter, refer to the IDOL Server Reference.

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

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