> For the complete documentation index, see [llms.txt](https://help.zaapi.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.zaapi.com/flow-builder/error-troubleshooting.md).

# Error troubleshooting

### **Flow sent multiple messages**

This may happen if multiple flows are triggering simultaneously. To check:

1. Go to the customer chat where the flow triggered twice.
2. Click *"Automation logs"* in the sidebar.
   1. ![](/files/XHjX98t4Sm2VHhBu3k1T)
3. Check if another flow was triggered. If so, pause that flow.
4. If only one flow appears, check if any **Basic Automation** (e.g., greeting message, out-of-hours message) are enabled. Disable any conflicting automation.

***

### **Flow immediately started again after finishing**

This is likely due to the *"Trigger every time"* frequency setting. To adjust:

1. Click the **Trigger** node in the flow.
2. Select one of the following options:
   * *"Trigger once every new conversation"*
     * This means the flow will run again for that specific customer only after the conversation is closed and re-opened again
   * *"Trigger once per contact"*
     * This means the flow will only ever run once for that specific customer, even if the conversation is closed and re-opened again at a later date

***

### **Flow did not run**

Several factors could prevent the flow from running:

* **Trigger Frequency:** If *"Trigger once per contact"* is enabled, the flow will not restart for returning customers. Adjust this in the **Trigger** node and choose:
  * *"Trigger once every new conversation"*
  * *"Trigger every time"*
* **Message Content Condition Issue:** If a **Message Content** condition follows the **Trigger** node, review its operators (*contains, equals, etc.*) to ensure it correctly matches expected messages.
* **Messaging Channel Not Selected:** Open the **Trigger** node and confirm that all relevant channels are selected.
* **Flow is Paused:** Go to the **Flows List** and check if the flow is **Paused** or **Enabled**. If paused, enable it to resume functionality.