= for_each
:type: processor
:status: stable
:categories: ["Composition"]



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component_type_dropdown::[]


A processor that applies a list of child processors to messages of a batch as though they were each a batch of one message.

```yml
# Config fields, showing default values
label: ""
for_each: []
```

This is useful for forcing batch wide processors such as xref:components:processors/dedupe.adoc[`dedupe`] or interpolations such as the `value` field of the `metadata` processor to execute on individual message parts of a batch instead.

Please note that most processors already process per message of a batch, and this processor is not needed in those cases.