I created a simple call screener using Twilio Studio Flows.
How it works:
- Someone calls my Twilio number
 - A greeting is played
 - If they hang-up or record audio
 
- Twilio sends a SMS text, with the audio recording URL, to my actual phone number
 - The 
Media URLvalue is{{widgets.RECORD_VM.RecordingUrl}}according to the docs 
Visual:
Problem:
- Most of the time, the Flow fails with ERROR - 11200
 
- If I drill into one of the errors and replay the request, the audio recording is returned.
 
- It feels like there needs to be a pause between the time the 
RECORD_VMstep andSEND_SMSsteps in the Flow. - Some pause to give Twilio time to write the audio recording to a database so it can be retrieved by the 
SEND_SMSstep. - But it I don't see an option for this in Flow.
 
How should I troubleshoot and address this?



                        
The fix ended up being:
{{widgets.RECORD_VM.RecordingUrl}}from theMEDIA URLfield to theMESSAGE BODYfield as shown.