# webhook property change eventId data type

**URL:** <https://community.hubspot.com/t/webhook-property-change-eventid-data-type/75125>\
**Category:** APIs & Integrations\
**Tags:** webhooks\
**Created:** [February 14, 2023, 1:04am UTC](https://community.hubspot.com/t/webhook-property-change-eventid-data-type/75125 "2023-02-14T01:04:25Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![YX](https://avatars.discourse-cdn.com/v4/letter/y/50afbb/32.png) [@YX](https://community.hubspot.com/u/YX)\
**Post date:** [February 14, 2023, 1:04am UTC](https://community.hubspot.com/t/webhook-property-change-eventid-data-type/75125/1 "2023-02-14T01:04:25Z")

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Hi,

While working on setting up webhook endpoint, the app developer console gives the following sample data:

```lia-code-sample
{
 "eventId": "100",
 "subscriptionId": 1955356,
 "portalId": 23947062,
 "occurredAt": 1676336070969,
 "subscriptionType": "contact.propertyChange",
 "attemptNumber": 0,
 "objectId": 123,
 "changeSource": "CRM",
 "propertyName": "linkedin",
 "propertyValue": "sample-value",
 "appId": 1417050
}

```

which makes eventId seems to be of type string. However the real data later we received shows eventId is a number.

So my question is, is the type of eventId guaranteed to be a number in production? How about other IDs?

Thanks!

---

<div class="post-metadata">

**Author:** ![Jaycee\_Lewis](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/jaycee_lewis/32/61352_2.png) [@Jaycee\_Lewis](https://community.hubspot.com/u/Jaycee_Lewis)\
**Post date:** [February 14, 2023, 9:44pm UTC](https://community.hubspot.com/t/webhook-property-change-eventid-data-type/75125/2 "2023-02-14T21:44:54Z")

</div>

Hi, @YX 👋 Thanks for reaching out! Let’s tag in a few community members — hey @ConnorSlivensky @Teun can you shine some light here for @YX?

Thank you! — Jaycee