diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 857613e610..d52b36d351 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -140,6 +140,7 @@ build-and-lint:
     - yarn build
     - yarn lint
     - node scripts/check-packages.js
+    - node scripts/export-bundles-sizes.js
 
 build-bundle:
   extends:
diff --git a/scripts/export-bundles-sizes.js b/scripts/export-bundles-sizes.js
new file mode 100644
index 0000000000..d846e1e15b
--- /dev/null
+++ b/scripts/export-bundles-sizes.js
@@ -0,0 +1,54 @@
+const fs = require('fs')
+const path = require('path')
+const { browserSdkVersion } = require('./lib/browser-sdk-version')
+const { getOrg2ApiKey } = require('./lib/secrets')
+const { runMain, fetch } = require('./lib/execution-utils')
+
+const rumPath = path.join(__dirname, '../packages/rum/bundle/datadog-rum.js')
+const logsPath = path.join(__dirname, '../packages/logs/bundle/datadog-logs.js')
+const rumSlimPath = path.join(__dirname, '../packages/rum-slim/bundle/datadog-rum-slim.js')
+const workerPath = path.join(__dirname, '../packages/worker/bundle/worker.js')
+
+const LOG_INTAKE_URL = 'https://http-intake.logs.datadoghq.com/api/v2/logs'
+const LOG_INTAKE_REQUEST_HEADERS = {
+  'DD-API-KEY': getOrg2ApiKey(),
+  'Content-Type': 'application/json',
+}
+
+runMain(async () => {
+  const logData = [
+    {
+      message: 'Browser SDK bundles sizes',
+      service: 'browser-sdk',
+      ddsource: 'browser-sdk',
+      env: 'ci',
+      bundle_sizes: {
+        rum: getBundleSize(rumPath),
+        logs: getBundleSize(logsPath),
+        rum_slim: getBundleSize(rumSlimPath),
+        worker: getBundleSize(workerPath),
+      },
+      version: browserSdkVersion,
+      commit: process.env.CI_COMMIT_SHORT_SHA,
+      branch: process.env.CI_COMMIT_REF_NAME,
+    },
+  ]
+  await sendLogToOrg2(logData)
+})
+
+function getBundleSize(pathBundle) {
+  try {
+    const file = fs.statSync(pathBundle)
+    return file.size
+  } catch (error) {
+    throw new Error('Failed to get bundle size', { cause: error })
+  }
+}
+
+async function sendLogToOrg2(bundleData = {}) {
+  await fetch(LOG_INTAKE_URL, {
+    method: 'POST',
+    headers: LOG_INTAKE_REQUEST_HEADERS,
+    body: JSON.stringify(bundleData),
+  })
+}
diff --git a/scripts/lib/browser-sdk-version.js b/scripts/lib/browser-sdk-version.js
new file mode 100644
index 0000000000..6bca8b9398
--- /dev/null
+++ b/scripts/lib/browser-sdk-version.js
@@ -0,0 +1,5 @@
+const lernaJson = require('../../lerna.json')
+
+module.exports = {
+  browserSdkVersion: lernaJson.version,
+}
diff --git a/scripts/lib/build-env.js b/scripts/lib/build-env.js
index de9d6b532b..e3824b48c3 100644
--- a/scripts/lib/build-env.js
+++ b/scripts/lib/build-env.js
@@ -1,7 +1,7 @@
 const { readFileSync } = require('fs')
 const path = require('path')
 const execSync = require('child_process').execSync
-const lernaJson = require('../../lerna.json')
+const { browserSdkVersion } = require('./browser-sdk-version')
 const { command } = require('./command')
 
 /**
@@ -24,12 +24,12 @@ const buildEnvFactories = {
   SDK_VERSION: () => {
     switch (getBuildMode()) {
       case 'release':
-        return lernaJson.version
+        return browserSdkVersion
       case 'canary': {
         const commitSha1 = execSync('git rev-parse HEAD').toString().trim()
         // TODO when tags would allow '+' characters
         //  use build separator (+) instead of prerelease separator (-)
-        return `${lernaJson.version}-${commitSha1}`
+        return `${browserSdkVersion}-${commitSha1}`
       }
       default:
         return 'dev'
diff --git a/scripts/lib/execution-utils.js b/scripts/lib/execution-utils.js
index 1c73a2794e..f1e7203453 100644
--- a/scripts/lib/execution-utils.js
+++ b/scripts/lib/execution-utils.js
@@ -26,7 +26,7 @@ function runMain(mainFunction) {
     .then(() => mainFunction())
     .catch((error) => {
       printError('\nScript exited with error:')
-      printError(error)
+      printErrorWithCause(error)
       process.exit(1)
     })
 }
@@ -38,6 +38,14 @@ function printError(...params) {
   console.log(redColor, ...params, resetColor)
 }
 
+function printErrorWithCause(error) {
+  printError(error)
+  if (error.cause) {
+    printError('Caused by:')
+    printErrorWithCause(error.cause)
+  }
+}
+
 function printLog(...params) {
   const greenColor = '\x1b[32;1m'
   console.log(greenColor, ...params, resetColor)
diff --git a/scripts/release/generate-changelog.js b/scripts/release/generate-changelog.js
index a0974da97f..9e128f148f 100644
--- a/scripts/release/generate-changelog.js
+++ b/scripts/release/generate-changelog.js
@@ -5,7 +5,7 @@ const readFile = util.promisify(require('fs').readFile)
 
 const emojiNameMap = require('emoji-name-map')
 
-const lernaConfig = require('../../lerna.json')
+const { browserSdkVersion } = require('../lib/browser-sdk-version')
 const { spawnCommand, printError, runMain } = require('../lib/execution-utils')
 const { command } = require('../lib/command')
 const { modifyFile } = require('../lib/files-utils')
@@ -33,7 +33,7 @@ ${emojisLegend}
 
 ---
 
-## v${lernaConfig.version}
+## v${browserSdkVersion}
 
 ${changesList}
 ${content.slice(content.indexOf('\n##'))}`
diff --git a/scripts/release/update-peer-dependency-versions.js b/scripts/release/update-peer-dependency-versions.js
index d884281caf..4494af84da 100644
--- a/scripts/release/update-peer-dependency-versions.js
+++ b/scripts/release/update-peer-dependency-versions.js
@@ -1,7 +1,7 @@
-const lernaConfig = require('../../lerna.json')
 const { runMain } = require('../lib/execution-utils')
 const { modifyFile } = require('../lib/files-utils')
 const { command } = require('../lib/command')
+const { browserSdkVersion } = require('../lib/browser-sdk-version')
 
 const JSON_FILES = ['rum', 'rum-slim', 'logs'].map((packageName) => `./packages/${packageName}/package.json`)
 
@@ -25,7 +25,7 @@ runMain(async () => {
 function updateJsonPeerDependencies(content) {
   const json = JSON.parse(content)
   Object.keys(json.peerDependencies).forEach((key) => {
-    json.peerDependencies[key] = lernaConfig.version
+    json.peerDependencies[key] = browserSdkVersion
   })
   return `${JSON.stringify(json, null, 2)}\n`
 }