# How to use the transactional response token to debug a transactional API call?

{% hint style="info" %}
This guide is specific to Batch's Mobile Engagement Platform (More on the [difference between Batch's CEP and MEP](/getting-started/other/faq/what-are-the-differences-between-batch-customer-engagement-platform-and-mobile-engagement-platform.md)).
{% endhint %}

The [Transactional API](https://doc.batch.com/api/transactional/send) allows you to send action-oriented or time-sensitive push notifications to a specific user ID or to a group of IDs (device token, install ID, or custom user ID).

Once your POST successfully reaches the API endpoint, you should receive an **HTTP 201** confirmation and a unique **Transactional response** **token** representing the transaction.

<figure><img src="/files/hcoztoFz4qtsU1SNKAJN" alt=""><figcaption></figcaption></figure>

You can display information related to the transactional push notifications delivery using the **Transactional response token** in the [debug tool](https://doc.batch.com/dashboard/settings/app-settings#transactional-api-debug-tool) (Dashboard settings > Debug). This allows you to check the effective sending time of a transactional push as well as the API call time to monitor potential latencies.

<figure><img src="/files/O8uLRs4ufOn9v32G0pUP" alt=""><figcaption></figcaption></figure>

If the POST data does not meet the API requirements, you will receive an [actionable error message](https://doc.batch.com/api/transactional/send#failure).


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