Storage: what uses it and what to do when it fills
2GB on Starter up to 120GB on Enterprise, shared between knowledge bases, files, generated documents and recordings.
Storage is the plan limit most likely to catch you unprepared, because nothing about daily use suggests it is filling. Four things draw on it and one of them — recordings — grows continuously without anybody choosing to add anything.

Before you start
- Admin access to see the allowance.
- A willingness to delete superseded knowledge base documents rather than only adding.
Steps
Know your allowance
2GB on Starter, 14GB on Growth, 50GB on Scale, 120GB on Enterprise.
Know what draws on it
Knowledge base uploads, files on contacts, documents generated by workflows, and call recordings.
Clean the knowledge bases first
Not because they are the largest — usually they are not — but because deleting superseded documents improves your bot's accuracy as well as your space. Two problems, one action.
Then look at recordings
Usually the largest single consumer on a calling-heavy workspace, and the one that grows whether or not anybody is paying attention.
Then generated documents
A PDF generated on every workflow run adds up quickly at volume, especially if nobody is reading them.
Upgrade if the usage is genuine
Deleting things you actually need in order to stay on a cheaper plan is a false economy — particularly recordings, which are your best tool for improving AI agents.
Check it worked
After clearing knowledge base cruft, ask your bot five questions it used to get wrong. Often the accuracy improvement is the more valuable half of the exercise.
The parts people get wrong
- Recordings are usually the biggest consumer, but knowledge bases are the best place to start because deleting there improves answers too.
- Nothing about daily use signals that storage is filling. Check it when you check the other meters.
The ones people actually ask
What happens if I hit my storage limit?
You will experience errors when attempting to upload new files or generate new documents until space is cleared or the plan is upgraded.
Do deleted recordings free up space instantly?
Yes, permanently deleting files, knowledge base items, or recordings immediately restores your available storage.
Does text data consume storage?
No, contact data and messages do not consume the storage quota. It is strictly for files, recordings, and knowledge bases.
Can I buy extra storage without upgrading my plan?
Storage is tied to your tier. If you regularly exceed it, you likely need the larger plan overall.
Is there a max file size for knowledge base uploads?
Yes, large files may be capped to ensure efficient indexing. Break massive PDFs into smaller, targeted documents.
What should I clear first?
Knowledge bases, even though they are usually not the largest. Deleting superseded documents improves your bot's accuracy as well as your space — two problems, one action. Then recordings, which are usually the biggest single consumer on a calling-heavy workspace.
Should I delete recordings to stay on a cheaper plan?
Rarely. Recordings are your best tool for improving AI agents, so deleting things you actually need in order to avoid an upgrade is a false economy. If the usage is genuine, the plan is the answer.