# How to Check Undeliverable or Failed WhatsApp Contacts in Whautomate

Follow these simple steps to identify and manage undeliverable or failed WhatsApp contacts in Whautomate:

1. **Go to the Contacts Section:**\
   Navigate to the **Contacts** menu under the **Communication** section.

<figure><img src="/files/XOPOIuhaW761BJiPdbcF" alt=""><figcaption></figcaption></figure>

2. **Filter for Undeliverable or Failed Contacts:**\
   Use the **Message Undeliverable/Failed Contacts** filter. This displays contacts where messages failed, marked with an exclamation icon.

<figure><img src="/files/KfIlkNfWECfDEMQ9BjcZ" alt=""><figcaption></figcaption></figure>

3. **Hover Over the Exclamation Mark:**\
   Place your cursor over the exclamation mark next to a failed contact to view the error reason. Common reasons include:

* Invalid phone number.
* The user has blocked your business.
* The recipient is using an outdated WhatsApp version.

**Learn More About Failure Reasons:**\
For additional failure reasons and step-by-step solutions, [check this link.](/product-guides/whautomate-faqs/my-whatsapp-template-message-failing-to-send-to-some-users.md)

<figure><img src="/files/cnbpjenuZ9Tla4wffQGv" alt=""><figcaption></figcaption></figure>

**Q: What actions can I take to fix undeliverable messages?**\
A: Here are some steps you can take:

* Correct invalid phone numbers in your contact list.
* Resend messages once issues like blocking or outdated app versions are resolved.

By using the hover feature and filters in Whautomate, you can easily identify and resolve message delivery issues, ensuring better communication with your audience.


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