The value that the MatchFieldName user field must contain. The action returns users that have the specified MatchFieldName user field, which must contain a value that matches the MatchFieldValue. 
Separate multiple values with commas (,). There must be no space before or after a comma.
You can use one or more Wildcard values.
| Actions: | UserReadUserList UserReadUserListDetails | 
| Type: | String | 
| Default: | |
| Example: | MatchFieldValue=077*,078* | 
| See Also: | MatchFieldName | 
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