diff --git a/playground/nextjs/pages/index.tsx b/playground/nextjs/pages/index.tsx
index f2a72d5fb..77f0f3ff0 100644
--- a/playground/nextjs/pages/index.tsx
+++ b/playground/nextjs/pages/index.tsx
@@ -2,7 +2,7 @@
 import { useActiveFeatureFlags, usePostHog } from 'posthog-js/react'
 import { useEffect, useState } from 'react'
 import { cookieConsentGiven, PERSON_PROCESSING_MODE } from '@/src/posthog'
-import { setAllPersonProfilePropertiesAsPersonPropertiesForFlags } from 'posthog-js/lib/src/customizations/setAllPersonProfilePropertiesAsPersonPropertiesForFlags'
+import { setAllPersonProfilePropertiesAsPersonPropertiesForFlags } from 'posthog-js/lib/src/customizations'
 import { STORED_PERSON_PROPERTIES_KEY } from '../../../src/constants'
 
 export default function Home() {
diff --git a/src/customizations/index.ts b/src/customizations/index.ts
new file mode 100644
index 000000000..7cb66f40b
--- /dev/null
+++ b/src/customizations/index.ts
@@ -0,0 +1,2 @@
+export * from './setAllPersonProfilePropertiesAsPersonPropertiesForFlags'
+export * from './before-send'
diff --git a/src/entrypoints/customizations.full.ts b/src/entrypoints/customizations.full.ts
new file mode 100644
index 000000000..eb17c13c0
--- /dev/null
+++ b/src/entrypoints/customizations.full.ts
@@ -0,0 +1,7 @@
+// this file is called customizations.full.ts because it includes all customizations
+// this naming scheme allows us to create a lighter version in the future with only the most popular customizations
+// without breaking backwards compatibility
+
+import * as customizations from '../customizations'
+import { assignableWindow } from '../utils/globals'
+assignableWindow.posthogCustomizations = customizations
diff --git a/src/posthog-persistence.ts b/src/posthog-persistence.ts
index 131c85ed6..0a5546c00 100644
--- a/src/posthog-persistence.ts
+++ b/src/posthog-persistence.ts
@@ -224,7 +224,7 @@ export class PostHogPersistence {
             const campaignParams = Info.campaignParams(this.config.custom_campaign_params)
             // only save campaign params if there were any
             if (!isEmptyObject(stripEmptyProperties(campaignParams))) {
-                this.register(Info.campaignParams(this.config.custom_campaign_params))
+                this.register(campaignParams)
             }
             this.campaign_params_saved = true
         }