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Integration Service Activities

Last updated Feb 19, 2026

Send File to Channel

Project compatibility

Windows | Cross-platform

Overview

DescriptionAPI MethodAPI Path
Upload and send files to one or more channels in Slack. POST/send_files_to_channel

Input

ParameterDescriptionData Type
Send asWhether the message should be sent as the app or the user. string
FileThe file to upload. Supports standard file upload types. file
Channel names / IDsThe names or IDs of target channels.string
Initial commentThe message text introducing the file in Slack.string
TitleThe title of the uploaded file.string
FilenameThe name assigned to the file.string
File typeThe type of the file (e.g., pdf, png, txt).string
Thread tsA message timestamp to upload the file as a thread reply. string

Output

ParameterDescriptionData Type
File IDThe output ID of the file uploadedstring
Download file U RLThe output URL of the file uploadedstring
File uploadThe output file objectobject
  • In API workflows, a single response object is returned as the output. Any required fields can be extracted directly from this object.
  • In RPA workflows, some output parameters may differ, but the necessary values can still be retrieved from the response object even if they are not explicitly exposed.
  • Project compatibility
  • Overview
  • Input
  • Output

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