# Global Unique Identifier and email send

**URL:** <https://forums.nylas.com/t/global-unique-identifier-and-email-send/368>\
**Category:** Question and Answers\
**Tags:** email-api\
**Created:** [August 22, 2024, 6:06am UTC](https://forums.nylas.com/t/global-unique-identifier-and-email-send/368 "2024-08-22T06:06:10Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![vincentg](https://avatars.discourse-cdn.com/v4/letter/v/a587f6/32.png) [@vincentg](https://forums.nylas.com/u/vincentg)\
**Post date:** [August 22, 2024, 6:06am UTC](https://forums.nylas.com/t/global-unique-identifier-and-email-send/368/1 "2024-08-22T06:06:10Z")

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Hi,

We are currently making the migration to Nylas V3 and are using the `message_id` when sending/consuming emails as a way to uniquely globally identify an email.

The send message response schema currently list an ID field and I would like to confirm that we can use this field? This is currently not listed as required in the send response schema.

 ![Screenshot 2024-08-22 at 4.00.43 pm](https://us1.discourse-cdn.com/flex015/uploads/nylas3/original/1X/15e1beef302aa5e1ef610d202942170a52ecafbd.png)

Thanks,

Vincent

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**Author:** ![Blag](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.nylas.com/blag/32/9_2.png) [@Blag](https://forums.nylas.com/u/Blag)\
**Post date:** [August 22, 2024, 11:52am UTC](https://forums.nylas.com/t/global-unique-identifier-and-email-send/368/2 "2024-08-22T11:52:37Z")

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Hello @vincentg while the ID is not a required field (at least is not required to send an email), is what identifies an email, so you can for use it.