How to choose your upgrade preference

Estimated 4 minute read
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Updated Feb 21, 2025, 1:33 PM EST

You must:

  • Be an Owner or Admin.
  • Have an email and profile or SMS plan.  
You will learn

You will learn

Find out how to change to a different billing upgrade preference for messages: automatically upgrade, use flexible sending, or none (to manually upgrade).

About the billing upgrade preferences

About the billing upgrade preferences

Your billing upgrade preferences decide what happens when you reach your plan’s messaging limits for email or SMS. These preferences:

  • Don’t upgrade based on your profile count, as Klaviyo does that automatically when your billing cycle renews.
  • Aren’t available for other plan types (e.g., Reviews). 

There are 3 options for what happens when you reach your messaging limits. You can: 

  • Use flexible sending
    Provides all of the messages from the next tier for a 1-time fee. This option keeps you at your current plan tier. 
  • Automatically upgrade (also called auto-upgrade)
    Upgrades you to the next plan tier when you reach your plan’s email or SMS messaging limit. When you first purchase a subscription, auto-upgrade is toggled on by default. 
  • None
    Stops all sending until you upgrade, flex, or the billing cycle renews. 

Regardless of which option you choose, Klaviyo sends several notifications to the Owner when an account approaches the limits of a plan (e.g., when they reach the 75% and 90% marks). That way, you are not surprised when your account stops sending, flexes, or upgrades automatically.

Flexible sending vs. auto-upgrade 

Flexible sending vs. auto-upgrade 

Both flexible sending and automatically upgrading are a way to keep sending without being interrupted. The key difference is how: whether you stay on your current plan or move up a tier. 

Flexing is a 1-time fee for all of the messages at the next tier at your current unit rate (that is, the cost per message). You can flex multiple times in a single billing cycle (e.g., buy messages from 1, 2, or even 3 times), but the plan you’re on does not actually change. Additionally, you can auto-downgrade based on profiles if you’re using flexible sending. 

On the other hand, auto-upgrade moves you up a tier to a new plan, which you stay on until you downgrade. When you auto-upgrade, you are charged the difference between your current plan and the new plan.

Who is flexible sending best for?

Flexible sending is best for people who occasionally need extra sends during the year and who want to go back to their original plan once these times are over. It is not meant for those who are growing consistently and frequently need more profiles or messages throughout the year.

When to upgrade vs. flex plans

Flexing is typically more expensive than upgrading. When you flex plans, you are buying all of the profiles, sends, or credits of the next tier at the cost per message of your current tier. If you are frequently flexing plans, it can be more cost effective to upgrade.

Flexing is better if you don’t consistently exceed your plan’s limits. It’s also good for anyone who doesn’t want to worry about remembering to downgrade.

Will I be auto-downgraded?

Only if using flexible sending and if you choose to allow auto-downgrade based on profile count.

You will not be auto-downgrade if using auto-upgrade or based on the number of messages you send. 

Downgrading always takes effect the following billing cycle. You will finish out your current month's plan before your plan changes. Thus, we do not refund downgrades, as stated in our terms of service

What happens if a credit card payment fails?

If a credit card payment ever fails, auto-upgrade and flex sending are  disabled. In order to enable either of these options again, please do so in your billing preferences page.

Auto-downgrade based on profiles

Auto-downgrade based on profiles

Auto-downgrade is available for profiles plans only when using flexible sending. It cannot be used with auto-upgrade, and you cannot auto-downgrade based on message sends.

You can choose to auto-downgrade your profiles and email plan in Klaviyo’s billing preferences page. This automatically moves your plan to the next tier down if your active profile count qualifies for a lower plan 24 hours before your billing cycle ends. The downgrade goes into effect for the next billing cycle.

Change your billing upgrade preferences

Change your billing upgrade preferences

There are several ways you can change your billing update preferences, including at checkout in Klaviyo or from within an email and in-app notifications. 

However, the simplest approach is through the Billing Preferences page: 

  1. Select your account name in the lower left. 
  2. Go to Billing > Preferences.
  3. Find the plan you want to change options for (e.g., email, SMS, etc.).
  4. Open the dropdown.
  5. Select one of the following options to change what happens when that plan type reaches its plan limits:
    • None to stop sending or manually upgrade.
    • Automatically upgrade to enable auto-upgrade.
    • Flexible sending to flex plans.
  6. Note the cost associated with upgrading or flexible sending.
  7. Click Update to save.

Once you save this setting, it takes effect immediately. For instance, if you choose flexible sending and 1 day later you reach the limits of your plan, you will flex plans at that time. 

Additional resources

Additional resources

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