# Allow mapping of only selected values and ignore other field values for the sync
Starting from the Jira sync 24.71 version, there is an option to map only needed values for the following fields:
* dropdown fields
* user fields (users not existing in one system)
* multichoice
It helps to keep the items synced between two systems, while only required field details are passed.
The option 'Ignore unknown values' could be added either to the whole sync or to individual fields.
By default, it's set on the global level.
If you want to set it for specific fields, simply remove the checkbox
The next to each dictionary or user fields, you'll see additional checkbox that you can enable/disable.
In cases, when 'Ignore unknown values' is enabled on the global or specific field level, then for then the setting 'Automatically create new values from Jira in aqua' is disabled.
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