# CRM extension API: Error in data fetch request: RESPONSE\_DESERIALIZATION

**URL:** <https://community.hubspot.com/t/crm-extension-api-error-in-data-fetch-request-response-deserialization/11974>\
**Category:** APIs & Integrations\
**Tags:** developer-tools\
**Created:** [September 18, 2018, 5:42pm UTC](https://community.hubspot.com/t/crm-extension-api-error-in-data-fetch-request-response-deserialization/11974 "2018-09-18T17:42:01Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![sunny2](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/sunny2/32/2679_2.png) [@sunny2](https://community.hubspot.com/u/sunny2)\
**Post date:** [September 18, 2018, 5:42pm UTC](https://community.hubspot.com/t/crm-extension-api-error-in-data-fetch-request-response-deserialization/11974/1 "2018-09-18T17:42:01Z")

</div>

I created an object type on CRM extension API. but I am getting RESPONSE\_DESERIALIZATION error in monitor logs. I am using alex@proposify.biz (developer account)

 ![](https://d2qpr2jzcazej7.cloudfront.net/original/3X/0/1/012f0aecf95f89d5c16cc445f7f8025fce76510a.png)

```auto
 {
 "results": [
 {
 "objectId": 341814718,
 "title": "Proposal Sunny testing extension",
 "link": "somethingdotcom",
 "created": "2016-09-15",
 "priority": "HIGH",
 "project": "API",
 "reported_by": "msmith@hubspot.com",
 "description": "Customer reported that the APIs are just running too fast. This is causing a problem in that they're so happy.",
 "reporter_type": "Account Manager",
 "status": "Draft",
 "ticket_type": "Proposal",
 "updated": "2016-09-28",
 "actions": [
 {
 "type": "IFRAME",
 "width": 890,
 "height": 748,
 "uri": "somethingdotcom",
 "label": "Edit"
 },
 {
 "type": "IFRAME",
 "width": 890,
 "height": 748,
 "uri": "somethingdotcom",
 "label": "Snapshot"
 },
 {
 "type": "ACTION_HOOK",
 "httpMethod": "PUT",
 "uri": "somethingdotcom",
 "label": "Send"
 },
 {
 "type": "CONFIRMATION_ACTION_HOOK",
 "confirmationMessage": "Are you sure you want to send this proposal?",
 "confirmButtonText": "Yes",
 "cancelButtonText": "No",
 "httpMethod": "DELETE",
 "associatedObjectProperties": {
 "0": "protected_account",
 "uri": "somethingdotcom",
 "label": "Send"
 }
 }
 ]
 }
 ],
 "settingsAction": {
 "type": "IFRAME",
 "width": 890,
 "height": 748,
 "uri": "somethingdotcom",
 "label": "Settings"
 },
 "primaryAction": {
 "type": "IFRAME",
 "width": 890,
 "height": 748,
 "uri": "somethingdotcom",
 "label": "Create Ticket"
 }
}

```

---

<div class="post-metadata">

**Author:** ![sunny2](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/sunny2/32/2679_2.png) [@sunny2](https://community.hubspot.com/u/sunny2)\
**Post date:** [September 20, 2018, 3:03pm UTC](https://community.hubspot.com/t/crm-extension-api-error-in-data-fetch-request-response-deserialization/11974/2 "2018-09-20T15:03:32Z")

</div>

I was able to fix the issue

---

<div class="post-metadata">

**Author:** ![tezrosolutions](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/tezrosolutions/32/84335_2.png) [@tezrosolutions](https://community.hubspot.com/u/tezrosolutions)\
**Post date:** [October 12, 2018, 10:13pm UTC](https://community.hubspot.com/t/crm-extension-api-error-in-data-fetch-request-response-deserialization/11974/3 "2018-10-12T22:13:43Z")

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Hi there, Just curious how did you fix it? I am facing exact same problem.

---

<div class="post-metadata">

**Author:** ![IsaacTakushi](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/isaactakushi/32/70387_2.png) [@IsaacTakushi](https://community.hubspot.com/u/IsaacTakushi)\
**Post date:** [October 15, 2018, 3:33pm UTC](https://community.hubspot.com/t/crm-extension-api-error-in-data-fetch-request-response-deserialization/11974/4 "2018-10-15T15:33:49Z")

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[@\_umairk](https://community.hubspot.com/u/_umairk),

Please open a new topic and include links to the monitor logs in your developer account.