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What ever happened to the "callback" capability in Trello custom power-ups?

Searching has left me still without any documentation explaining why it was removed from the capabilities list and how it was replaced. Anyone have a link to the documentation? Or maybe a way to understand this?



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I am not quote sure what you are referring to. I am not aware of a Power-Up with that name - would you mind sending us a link to the Power-up page?

Or was this Power-Up by any chance that this was a custom or 3rd party Power-up that was build for your internal use?  In this case you would need to check with them on the functionality.

Hi Torben,

Thanks for your response. As I learn to build my own custom Trello power up, I'm searching for good learning resources and so far, this one is the best (and only legitimate) tutorial I've found:

It (as well as other tutorials) refers to activating the Power-up Capability "callback" which cannot be found in the Trello Power-up Capabilities list for custom power-ups. It seems this used to be a feature and now the tutorial is outdated. Or maybe something else?

I'd like to better understand what happened to the callback capability and how it was replaced. More generally, I would really appreciate a qualified tutorial or starting point in learning to code custom Trello power-ups.

I appreciate your input - thanks!


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