This parameter sets which predefined source(s) should be used for suggestions for all results pages.

To specify a non-predefined external file please use auto-completion.source.extra.

Possible values are:

  • internal: Spelling Suggestions will be used as auto-completion suggestions

  • csv: A CSV file in the collection’s configuration directory, named auto-completion.csv in the CSV data format. This collection level CSV file in the will be applied to all results pages. Results page auto-completion.csv files will always be applied, even if csv is not set as a search package level auto-completion source.

Setting the key

Set this configuration key in the results page (preferred) or search package configuration.

Use the configuration key editor to add or edit the auto-completion.source key, and set the value. This can be set to any valid List<String> value.

Default value



To use both spelling suggestions and csv as suggestion sources:


To set a results page to have no search package level sources we can set in that the results page configuration: