# Response Deserialization Error

**URL:** <https://community.hubspot.com/t/response-deserialization-error/24687>\
**Category:** APIs & Integrations\
**Tags:** object\
**Created:** [August 27, 2020, 1:03am UTC](https://community.hubspot.com/t/response-deserialization-error/24687 "2020-08-27T01:03:38Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![dcabrera](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/dcabrera/32/39641_2.png) [@dcabrera](https://community.hubspot.com/u/dcabrera)\
**Post date:** [August 27, 2020, 1:03am UTC](https://community.hubspot.com/t/response-deserialization-error/24687/1 "2020-08-27T01:03:38Z")

</div>

I’m making a CARD to show records from an external database on the DEALS detailed view , but i’m getting “Deserialization error on response” , my Json response is :

`{"results":{"objectId":"28308","title":"UPS Proyecto Armstrong C4 ","link":null,"creado":"2020-07-29"}}`

with only one record just for test , and i defined the properties on the card definition interface :

 ![30759iD55ACD6EEA1555E2.png](https://d2qpr2jzcazej7.cloudfront.net/original/3X/5/4/549153273a9a02a9cc3157d3577ee306dbf113e6.png)  
Properties of the card

The app id is: 226339 it’s a testing app , Do i missing some required property ?

---

<div class="post-metadata">

**Author:** ![Mike\_Eastwood](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/mike_eastwood/32/70075_2.png) [@Mike\_Eastwood](https://community.hubspot.com/u/Mike_Eastwood)\
**Post date:** [August 27, 2020, 3:52am UTC](https://community.hubspot.com/t/response-deserialization-error/24687/2 "2020-08-27T03:52:00Z")

</div>

Hi @dcabrera

I would try changing null to “” (empty quotes).

Did that fix it?

Mike

---

<div class="post-metadata">

**Author:** ![dcabrera](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/dcabrera/32/39641_2.png) [@dcabrera](https://community.hubspot.com/u/dcabrera)\
**Post date:** [August 27, 2020, 4:23am UTC](https://community.hubspot.com/t/response-deserialization-error/24687/3 "2020-08-27T04:23:18Z")

</div>

Same error even with fixed sample value :

`{"results":{"objectId":"28308","title":"UPS Proyecto Armstrong C4 ","link":"https:\/\/exampleapp.com","creado":"2020-07-29"}}`

---

<div class="post-metadata">

**Author:** ![Mike\_Eastwood](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/mike_eastwood/32/70075_2.png) [@Mike\_Eastwood](https://community.hubspot.com/u/Mike_Eastwood)\
**Post date:** [August 27, 2020, 4:50am UTC](https://community.hubspot.com/t/response-deserialization-error/24687/4 "2020-08-27T04:50:04Z")

</div>

Hi @dcabrera

Is your “creado” property a default HubSpot Property? Or your Custom Property?

If it’s a HubSpot **Default** Property you probably can not set the property from the API.

If it’s your Custom Property, and it is a Date Picker, then I would try sending a Unix Microtime\*.

Warning – HubSpot dates are in Micro Seconds not Seconds (like a normal Unix Timestamp).

Have fun

Mike

---

<div class="post-metadata">

**Author:** ![dcabrera](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/dcabrera/32/39641_2.png) [@dcabrera](https://community.hubspot.com/u/dcabrera)\
**Post date:** [August 28, 2020, 4:58pm UTC](https://community.hubspot.com/t/response-deserialization-error/24687/5 "2020-08-28T16:58:38Z")

</div>

The problem wasn’t any of the properties defined on the CARD , i’ve just added values for settingsAction and primaryAction to de data at the end of the Json estructure and it’s working now.