> For the complete documentation index, see [llms.txt](https://doc.batch.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.batch.com/developer/technical-guides/how-to-guides/web/how-to-integrate-batchs-snippet-ecmascript-6-using-a-tag-manager.md).
# How to integrate Batch's snippet (ECMAScript 6) using a Tag Manager?
Here is how to integrate Batch scripts using a Tag Manager that does not support the most recent JavaScript versions.
Batch methods available in our [documentation](/developer/sdk/web/profile-data.md) (for example to collect profile data) are written in the latest available version of JavaScript. However, some Tag Management Systems do not support ECMAScript 6.
## Managing compatibility issues
In some cases, Batch JavaScript tags are not supported by default by Tag managers like Google Tag Manager (GTM) and Tag Commander due to the use of arrow functions.
In order to use the preconfigured JavaScript tags in these Tag Managers, you must remove all the arrow functions it contains. This can be done easily by using a tool like [Babel](https://babeljs.io/repl/#?browsers=\&build=\&builtIns=false\&corejs=3.6\&spec=false\&loose=false\&code_lz=Q\&debug=false\&forceAllTransforms=false\&shippedProposals=false\&circleciRepo=\&evaluate=false\&fileSize=false\&timeTravel=false\&sourceType=script\&lineWrap=false\&presets=env\&prettier=false\&targets=\&version=7.15.8\&externalPlugins=\&assumptions=%7B%7D).
## Babel
You can use our [pre-configured Babel link](https://babeljs.io/repl/#?browsers=defaults%2C%20not%20ie%2011%2C%20not%20ie_mob%2011\&build=\&builtIns=false\&corejs=3.21\&spec=false\&loose=false\&code_lz=Q\&debug=false\&forceAllTransforms=false\&modules=false\&shippedProposals=false\&circleciRepo=\&evaluate=false\&fileSize=false\&timeTravel=false\&sourceType=module\&lineWrap=true\&presets=env%2Creact%2Cstage-2\&prettier=false\&targets=\&version=7.24.7\&externalPlugins=%40babel%2Fplugin-transform-arrow-functions%407.24.7\&assumptions=%7B%7D) to convert Batch tags into a JavaScript format compatible with Tag Management System tools.
{% hint style="warning" %}
Ensure that the plugin @babel/plugin-transform-arrow-functions is added in the bottom left corner of Babel.
{% endhint %}
---
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