Created 2 API blocks but 2nd one is not triggering
Hello, I'm trying to build a Dynamic Carousel; I created 2 API blocks for testing purposes. When I run the entire workflow the 2nd API block is not being triggered. Here are screenshots of:
1. The workflow
2. Ist and 2nd API blocks
3. Set block
2 Replies
Here are the quickest things to check when an API #2 never runs:
1. Verify the canvas connection
• The API step only moves forward through the port you connect.
– Success = “Default” port.
– Error (4xx / 5xx, timeout, bad JSON, etc.) = “Failure” port (only visible if you toggled it on).
If the Default/Failure port isn’t linked to the second API block, the execution stops there.
2. Confirm the first call is succeeding
• In the API-1 editor press Send Request. You should see “Success” and a 2xx status.
• If you get an error, the block will drop to the Failure path at runtime – and API-2 will never be reached unless that path is wired up.
3. Check for hidden “wait” steps
• Steps like Speak + Listen, Choice, or a Custom Action with “Stop on action” will pause the flow until the user/client responds. Make sure nothing between API-1 and API-2 is waiting for input.
4. Validate variable mappings
• If you’re capturing a value from API-1 and then inserting it into API-2’s endpoint/body, make sure the variable actually contains data (test in the Debugger or add a temporary Speak block to print it).
5. Use the Failure path for safety
• When you enable the Failure port and connect it back into the flow (e.g. a Text step that says “API 1 failed” ➜ then route to API-2 or an exit), you’ll know immediately if the first call is breaking.
Typical fix order
Once API-1 returns “Success” and that Default line is connected, API-2 will fire automatically.
Docs reference
– API step overview, paths, testing & troubleshooting: https://docs.voiceflow.com
Try the steps above; nine times out of ten the issue is an un-connected port or an error in the first request.
This issue has been resolved. Thank you.