UpdatePostMessageSlackAction is an input datatype for updating a post-message Slack action. It's used by the updateSlackPostMessageAction() mutation field.

Table: UpdatePostMessageSlackAction

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 
apiTokenStringyes Long-Term The API token to authenticate with Slack.
channelsStringyes Long-Term The list of Slack channels to message.
fieldsSlackFieldEntryInputyes Long-Term Fields to include within the Slack message. This can be templated with values from the result. See SlackFieldEntryInput.
idStringyes Long-Term The unique identifier of the action.
labelsStringyes   Labels to categorize the action.
nameStringyes Long-Term The name of the action.
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.