Getting 503 when trying to sign extension

Hi everyone,

Recently I’ve been trying to sign an extension I’m working on on the extension warehouse and I keep getting an error on this step:

Is this something that is wrong from my side? The extension is pretty big ~390MB. But I was able to sign it just 2 weeks ago.

ping @CraigTrickett

My bookmark is still to the older signing portal:

Have you tried this URL?


Apparently SketchUp Web pages / Help Center are being overhauled and are in a state of flux.

In my last software job, you’d get fired for going public-facing live with a site that hadn’t gone through sufficient offline testing and the released version had errors like this.

SketchUp Extension Warehouse is exactly the portal I had in my bookmarks as well - is there a newer version?

It’s a bit unfortunate that this is the only avenue for signing, at least one that I am aware of…

We do not know … we speculate because of the URL you posted above.

Ohh, no no this is just the HTTPS request that keeps failing with 503 Service Unavailable. I am using the same link (SketchUp Extension Warehouse) to access the signing service.

It is quite unfortunate that it has been a couple of days but the signing service is still broken for me, reached out to developer-support@sketchup.com, hopefully they will also help to resolve this issue!

Thanks for your help!

I am getting that same error too. I can still sign smaller extensions, but not my larger extension (Which I was able to sign a couple of weeks ago.)

I am trying to pare it down to see if it’s simply a size issue where maybe the size needs to be under 256 MB.

ping @CraigTrickett … again