@SlackHQ Working with attachments for slash commands. Took a while to realize one field was required. Any resource showing this?
@SlackHQ But if an image_url is used it looks like text is also required. I can't seem to see this noted anywhere.
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@atommorgan You can use `image_url` without text, but you will also need to use the required `fallback` parameter.Thanks. Twitter will use this to make your timeline better. UndoUndo
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