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The copy_values processor copies values within an event and is a mutate event processor. The following table describes the options you can use to configure the copy_values processor.

Option Required Type Description
entries Yes List The list of entries to be copied. Valid values are from_key, to_key, and overwrite_if_key_exists.
from_key N/A N/A The key of the entry to be copied.
to_key N/A N/A The key of the new entry to be added.
overwrite_if_to_key_exists No Boolean If true, the existing value is overwritten if the key already exists within the event. Default value is false.
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