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Double-byte character language support in eDiscovery (preview)

eDiscovery (preview) supports double-byte character set languages (these include Simplified Chinese, Traditional Chinese, Japanese, and Korean, which are collectively known as CJK languages) for the following scenarios in a review set:

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Limitations for CJK characters

The following features for CJK characters aren't currently supported in eDiscovery (preview):

  • Detecting CJK characters in file metadata.
  • Filtering, sorting, or searching by document languages in a review set.
  • Optical Character Recognition (OCR) for image files.
  • Email files (such as *.eml and *.msg) in Annotate view.
  • Search hit highlighting in Text view.
  • Query-based holds for cases.
  • The Relevance module used to analyze data.

Search for items containing CJK characters

You can use CJK characters when searching for content in eDiscovery (preview). CJK characters are supported for all search operators and search conditions, including the boolean operators AND, OR, NOT, and NEAR.

If you're certain that content locations or items contain CJK characters, but searches aren't returning any results, select the query language-country/region icon Query language-country/region icon in eDiscovery. and select the corresponding language-country culture code value for the search. The default language/region is neutral.

Searching multiple languages at the same time

Searching multiple languages at the same time depends on your search scenario.

  • When you query data in a review set with premium eDiscovery features enabled, you can search for multiple languages. For review set queries, you don't need to specify a document language. eDiscovery (preview) automatically detects document languages when you add content to a review set. This detection helps you optimize your query results in a review set.
  • When you create a search to collect data, create separate searches for each language you're targeting. For example, if you're searching for a document that contains both Chinese and Korean, select Chinese for your first search and select Korean for your second search.

Changing your display language to Chinese, Japanese, or Korean

For information about how to change display language and time zone, see How to set language and region settings for Office 365.