Data is stored in three places in each application, just add up the total size of:
The most important factor in this is going to be your attachments though.
Short answer is to check with Atlassian support. They'll ask you what Nic said
Hi there,
Just wanted to post a quick update on this topic for anyone coming across it. Atlassian's cloud sites can now support up to 10,000 users and unlimited data (depending on your choice of plan). We've also updated our cloud applications so that you can track how much storage you're using without needing to contact support.
For the latest information, and instructions on how to view your storage usage in cloud, check out our cloud storage policy.
I hope this helps, and please don't hesitate to reach out with any further questions!
Best,Maren
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