Use the custom fields API to define, rename, and delete custom fields on an account.
Return all fields used in the account.
Status: 200 OK
<subject-fields type="array">
<subject-field>
<id type="integer"></id>
<label></label>
</subject-field>
...
</subject-fields>
Defines a new custom field on the account.
<subject-field><label>#{label}</label></subject-field>
Status: 201 Created
Location: /subject_fields/#{new_id}.xml
<subject-field>
<id type="integer"></id>
<label></label>
</subject-field>
Rename a field on this account.
<subject-field><id>#{id}</id><label>#{label}</label></subject-field>
Status: 200 OK
Removes a custom field from the account.
Status: 200 OK