Update

Parameter	Description	Example	More info
API	The API area	clientcontacts.json
Action	The action to perform	action=update
	Parameters described in overview	user=user&password=user	v3.3 Overview
input	Client contact Internal Ref (mandatory), then name/value pairs	"data": [<see example>]
Response	Returned data	See below

Response|Returned data|See below

Example request:

http://<SERVER>/jsonapi/clientcontacts.json?user=user&password=user&version=3.3&action=update&input={
  "data": [
    {
      "clientcontactInternalRef": 6535,
      "clientcontactFirstName": "Babs",
      "clientcontactName": "Smith"
    }
  ]
}

Updating a custom field...

http://<SERVER>/jsonapi/clientcontacts.json?user=user&password=user&version=3.3&action=update&input={
  "data": [
    {
      "clientcontactInternalRef": 6535,
      "clientcontactCustomField200": "text1a"
    }
  ]
}

Example response:

{
  "responsecode": 1,
  "responsestatus": "OK",
  "errorcode": 0,
  "errormessage": "",
  "responsemessage": "data processed successfully.",
  "warningmessage": "",
  "success": true,
  "data": [
    {
      "clientcontactInternalRef": 6535,
      "clientcontactuuid": "05F73F03055D4F0D942A7E03D0BA09EE",
      "clientcontactTimeStampModified": 1544094783,
      "clientcontactRecordVersionNumber": 11
    }
  ]
}

Note:

To discover which fields are editable make a call to the "Contacts details" endpoint and specify '&style=modelstructure' see Meta-data