Zoho API insert/update custom fields for tasks

Zoho API insert/update custom fields for tasks

Hello,

according to the documentation
(
custom_fields
JSON Object
Value of the custom field. Example : {"UDF_CHAR1":"Hello"}
)


however, when I try to insert a new task my custom field (in my example UDF_CHAR9) is never filled in.

The same happens when I try to update an existing time (even if the field is filled in) it never gets updated.

Could you perhaps provide a working example of then (c#?)

thank you