​
Open

The open event is triggered when an element has successfully launched. No additional data is passed at this time. 
methodelements://general
  ?op=open
  &element_type=connect
The event payload will have the following form:
​
op
string
The operation type returned by the element.
​
element_type
string
The name of the element that triggered the event. Possible values are: connect, auth, account_verify, unknown

​
Error

The error event is sent for any element that encounters any error while it’s active. 
methodelements://general
  ?op=error
  &element_type=unknown
  &type=INVALID_REQUEST
  &sub_type=EXPIRED_TOKEN
  &message=The public element token is no longer valid. Element tokens are short lived and can only be used once. Request a new element token and try your request again.
  &code=400
The event payload will have the following form:
​
op
string
The operation type returned by the element.
​
element_type
string
The name of the element that triggered the event. Possible values are: connect, auth, account_verify, unknown
​
code
integer
The status code of the response.
​
type
string
A broad description of the error
​
sub_type
string
The specific error type
​
message
string
A human-readable message providing more details about the error

​
Exit

The exit event is the last event in the element flow, at this point your app should no longer present the Method Element. Exit is triggered after an error, a user requested exit or a successful element event. 
methodelements://general
  ?op=exit
  &element_type=connect
The event payload will have the following form:
​
op
string
The operation type returned by the element.
​
element_type
string
The name of the element that triggered the event. Possible values are: connect, auth, account_verify, unknown