Whenever I try to send images attached to tasks via zapier to buffer I get an access denied message from asana. I add images via the download-URL provided by asana and I know it was possible a few months ago, when I ran tests to post asana tasks to my facebook page.
You might want to report this to Zapier. Unfortunately, Asana doesn’t manage their Zapier integration. Maybe we can convince them to take it over?
There are a few bugs in it right now. For example, you can’t create a task with multiple projects tied in the current Zapier configuration. It’s just a bug and tough for Zapier to put all of the resources behind fixing them all. Asana’s team is far larger and would likely do a better job keeping their integration working and bug-free.
Zapier told me that if we can convince Asana to take over the integration that would be super helpful and would likely result in more frequent updates and fixes.