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Troubleshooting: WhatsApp Undelivered Error in Stack

If you're encountering an error where your WhatsApp message isn't delivered, it might be due to a "WhatsApp undelivered" issue. Here's a guide to help you understand and resolve this problem.

Common Reasons for Undelivered WhatsApp Messages​

1. Phone Number Doesn't Have WhatsApp​

One potential reason for the undelivered message is that the recipient's phone number isn't associated with a WhatsApp account. To verify if a contact number is linked to WhatsApp, you can use this tool: WhatsApp Checker.

2. Marketing Template Limit​

Short Explanation​

You might have reached the maximum number of marketing templates allowed within a certain period.

Long Explanation​

To ensure high-quality user experiences and maximize engagement, there are limits on the number of marketing template messages a person can receive from any business over a set time frame. This limit is based on the total number of marketing template messages a person receives from all businesses, not just yours.

Solutions​

  • Use Utility Templates: Unlike marketing templates, utility templates don't have a sending limit. Consider creating and sending a utility template to communicate with your contacts.

  • Customer-Initiated Conversations: Encourage your customers to start a conversation by sending a message. This can bypass some of the limitations associated with marketing templates.

By understanding these reasons and applying the suggested solutions, you can effectively manage and troubleshoot undelivered WhatsApp messages in Stack.