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Understand platform storage limits & pricing

Last Update: Mar 2025 • Est. Read Time: 3 MIN
To check plan availability, see the pricing page.

This article shares details about Kustomer platform storage limits and pricing options. Storage limits and pricing reflect that of production, non-sandbox organizations. For information on limits for Kustomer features, see Application limits.

Who can access this feature?
User typesAdmins can access the Platform Usage page.


In this article

Kustomer platform usage

Our storage limits and pricing defined below consider various levels of resource use in the Kustomer platform. This includes all primary data storage, replication, multi-region backup data transfer and storage, and search indexing storage and replication.

For this article, units of bytes are calculated as follows:

  • One kilobyte (KB) means 1000 bytes.

  • One megabyte (MB) means 1000 kilobytes.

  • One gigabyte (GB) means 1000 megabytes.

  • One terabyte (TB) means 1000 gigabytes.

Storage categories

Kustomer's storage limits are broken into 2 main categories: data storage and attachment storage.

  •  Data storage
    The data storage category represents the total storage size of all standard and custom objects, including all standard and custom attributes. Storage in this category is calculated by multiplying the quantity of each Klass type by its corresponding storage size and then taking a sum of the total.
    Klass typeStorage size
    Company0.1 KB
    Customer0.1 KB
    Conversation0.5 KB
    Message0.2 KB
    Attachment0.1 KB
    Event / Audit Log0.07 KB
    Note0.2 KB
    Custom object dataStorage size
    KObject0.5 KB
    Custom attribute (including custom attribute strings on standard objects)0.05 KB


    Note: KObject storage size excludes using the Data attribute, which is treated as attachment storage. Use of the Data attribute may be included in additional attachment storage usage charges in the future. 

  •  Attachment storage
    The attachment storage category represents the total storage size of all the files attached to standard or custom storage objects, including email attachments. Storage size in this category is based on the size of the attachment content of the uploaded file rounded up to the nearest KB.

Storage limits

Storage limits are allocated by organization and user, with defaults for the organization by subscription plan type and per-user allocations by subscription plan.

Default storage allocation per organization*

The values in the table below are allocated by default for all organizations.

*If you have created multiple organizations under your account, the amounts below will be allocated pro-rata across the number of organizations on your account. 

PlanDefault storageAdditional storage allocation (seat-based plans)
Additional storage allocation (conversation-based plans)*

Data storageAttachment storageData storage
Attachment storage
Data storage
Attachment storage
Professional (legacy plan)2.5 GB5 GB125 MB per full-time user1.25 GB per full-time usern/an/a
Business (legacy plan)5 GB10 GB250 MB per full-time user2.5 GB per full-time usern/an/a
Enterprise10 GB20 GB500 MB per full-time user5 GB per full-time user150MB / 1k committed conversations3 GB / 1k committed conversations
Ultimate 20 GB40 GB1 GB per full-time user10 GB per full-time user300MB / 1k committed conversations
4GB / 1k committed conversations


The values in the table above are allocated for each full-time user license on your subscription plan at the end of each calendar month during your subscription term in addition to the per-organization allocation. For clarity, if your organization adds or removes full-time user licenses within a calendar month, your default storage allocation will be adjusted based on the number of licenses at the end of the calendar month. No additional storage allocation is provided for seasonal or collaboration users.

*If your organization has purchased a custom usage-based license that measures usage every month, the additional data storage per full-time user will be based on a straight-line average of full-time users across the commitment period instead of the actual usage in any given monthly period.

Exceeding default storage allocations

If you exceed your default storage allocations, Kustomer reserves the right to enforce storage limits, including charging for additional usage, restricting the creation of new data, and/or reducing existing data storage usage.

View platform usage

You can view your current usage of your platform storage in Settings > Platform > Platform Usage at any time. For more information on how to manage your data, see Manage platform usage.

Purchase additional data and attachment storage

Additional storage can be purchased at the following rates: 

  • Data storage is $50 per additional GB
  • Attachment storage is $1 per additional GB

You can contact customersuccess@kustomer.com to purchase additional storage and add it to your default limits. If you do not purchase additional excess data and/or attachment storage prior to the end of the calendar month in which you exceeded the limits on your subscription plan, Kustomer will invoice you on a monthly basis for the amount of additional data and/or attachment storage at the rates set forth above to raise your limits to the amount you need to bring your data storage and/or attachment storage in compliance, and you agree to pay such data and/or attachment storage fees, as applicable.

Note: If you have questions about your data storage or managing storage limits, please reach out to your aligned CSM or to customersuccess@kustomer.com.