The STORAGE_LIMIT_EXCEEDED error occurs when Data and File Storage Allocations have been exceeded. See Monitor Data and Storage Resources to review your current usage.
Important: Data storage limits are not strictly enforced in production environments to help ensure business-critical data continues to be created despite exceeding contractual limits. If you receive storage limit exceeded messages in production, contact your Account team immediately — Support cannot increase storage limits in production.
Going over either Data Storage or File Storage allocations causes the error when creating records or uploading files in a sandbox. Both limits must be maintained under 100%.
For example, if Data Storage is at 50% but File Storage is at 110%, the error appears for both record creation and file uploads. It is not possible to allocate available Data Storage to File Storage or vice versa.
If storage was exceeded in production at the time a full-copy sandbox was refreshed:
Note: Increases to sandbox storage levels beyond what is provisioned in production are against Salesforce policy and are not possible under normal circumstances.
If your production organization's storage was increased after the sandbox was created, use the Match Production Licenses tool to sync the new storage limits to the sandbox without a full refresh:
Company Information in the Quick Find box, select Company Information, and click Match Production Licenses.Note: During the sandbox preview window, the Match Production Licenses tool may not be available when the sandbox release version does not match production. If the tool is unavailable, log a case with Salesforce Support to request manual storage matching.
Sandbox Licenses and Storage by Type
Monitor Data and Storage Resources
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