TestSlackAction is an input datatype for testing a Slack action. It's used by the testSlackAction() mutation field.

Table: TestSlackAction

ParameterTypeRequiredDefaultStabilityAvailabilityDescription
Some input parameters may be required, as indicated in the Required column. For return values, this indicates that you are assured a value if the field is requested for the results. 
Table last updated: Oct 14, 2026 
eventDataStringyes Long-Term JSON data representing one or more events. One event can be supplied as a JSON object. Multiple events must be supplied as a list of JSON objects.
fieldsSlackFieldEntryInputyes Long-Term The fields to include within the Slack message. Can be templated with values from the result. See SlackFieldEntryInput.
nameStringyes Long-Term The name of the action.
triggerNameStringyes Long-Term The name of the action. This is a mock value; the trigger doesn't have to exist.
urlStringyes Long-Term The Slack webhook URL where to send the request.
useProxyBooleanyes Long-Term Defines whether the action should use the configured proxy to make web requests.
viewNameStringyes Long-Term The name of the view of the action.