Hello,

 I our Zoho Books account we have created for every item custom fields(columns) related to our business such us: Color.  Also we have integrated Zoho API to sync our app and zoho. 

 Now we have a problem when creating an item using this api:  https://www.zoho.com/books/api/v3/#Items_Create_an_Item

We try to past custom column value, but it seems that zoho ignores that. API documentation  does not says anything about how to handle this problem. 

My question is: How we can add custom item field value when creating Item using API?