- URL:
 - https://[root]/portals/[portalID]/certificates/[certificateID]/update
 - Methods:
 POST
Example usage
The following is a sample ArcGIS Online POST request for the update operation:
POST /sharing/rest/portals/0123456789ABCDEF/certificates/adzf7nGZD1XCnyph/update HTTP/1.1
Host: org.arcgis.com
Content-Type: application/x-www-form-urlencoded
Content-Length: []
name=orgCert&domain=domain.com&certificate=...Description
The update operation (HTTPS only) allows organization administrators to update a registered custom X.509 HTTPS certificate.
Request parameters
| Parameter | Details | 
|---|---|
  | Name for the registered certificate. Example  | 
  | Server domain that the certificate is used for. Example  | 
  | Base64-encoded certificate text, enclosed between   | 
Response properties
| Property | Details | 
|---|---|
  | Indicates if the operation was successful.  | 
  | Id of the registered certificate.  | 
JSON Response syntax
{
  "success": true,
  "certificateId": "<certificateId>"
}JSON Response example
{
  "success": true,
  "certificateId": "adzf7nGZD1XCnyph"
}