Using the For each message in a channel iterator
- Updated: 2026/04/17
Use the For each message in a channel iterator to automatically go through every message within a specified Slack channel. It enables you to automate tasks like analyzing, archiving, or processing all messages in a channel.
Procedure
- Double-click or drag the Loop action from the Loop package in the Actions palette.
- Select the For each message in a channel option from the Iterator list.
- Use the Session name field to select one of the following
options:
- Session name: Enter the name of the session you used in the
Connect
action.
(Optional) Click the Insert a value icon to select an existing variable that you have used to store the Slack session name.
- Variable: Enter the name of the variable that you have used to store the session name.
- Session name: Enter the name of the session you used in the
Connect
action.
- Specify the Channel to retrieve its details using the following options:
- Channel name: Specify the Channel name inside a specific team.
- Channel ID: Specify the unique ID of the Channel.
- Use the Start date and End date options to filter messages within a specified date range.
- In the Assign message details to a variable field, choose
either Multiple variables or Dictionary
variable to save the message details in the output variable:
- Multiple variables: Assigns each retrieved value
of a specific key (for example, messageID, message, sentUserID,
sentUserName, createdDateTime, modifiedDateTime) to a separate variable
enabling you to map each channel detail to a specific variable. Do
following steps for each variable:
- Click Add variable mapping.
- Enter the Key of the variable.
- In the Map to variable field, choose a variable where the data will be saved.
- Click Add for this data to be saved to the configured variable.
- Multiple variables: Assigns each retrieved value
of a specific key (for example, messageID, message, sentUserID,
sentUserName, createdDateTime, modifiedDateTime) to a separate variable
enabling you to map each channel detail to a specific variable. Do
following steps for each variable: