Change dropdown option on custom field


I keep getting the following response: Invalid custom field item value.


I’ve tried using both of these in the request body but neither work






A normal text/number field works perfectly but can’t figure out why the dropdown one doesn’t work at all.

2 answers

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Answer accepted

Hi Ashley,

Try it like this:

PUT 1/cards/<card_id>/customField/<field_id>/item

With payload:

{ "idValue": "<value_id>" }

 I.e. for options, you need to set idValue instead of value.

Thanks, that's worked.

Bit confusing as there's nothing in the documentation about this changing.

I have a similar problem. Below is a small snipit of what I currently have. Customfield 11111is multi-select field that works as is but I keep getting errors on the dropdown (customfield 33333). Where am I going wrong?

"fields": {
     "project": { "key": "PROJECT" },
     "customfield_11111": [ {"id":"22222"} ],
     "customfield_33333": {"idValue":"44444"},

I found my error. I just had to remove Value from idValue and it worked. 

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