The new topic for the conversation. It must be a string up to 250 characters long. Text formatting and linkification are not supported.
channelstring
The ID of the public channel, private channel, direct message, or multi-person direct message conversation for which the topic will be set. Must be a channel ID (C/G/D prefix), not a human-readable name like '#general'.
Observable output
data
Required
Data from the action execution
errorstring
Error if any occurred during the execution of the action
successfulboolean
Required
Whether or not the action execution was successful or not