We are using Zendesk as a CRM platform and users are able to call in and leave a voicemail for us to respond to. Zendesk already has that voicemail recording as an mp3 file and I am attempting to forward that recording into Slack.
The issue I am having is that after I use the Zendesk API to retrieve the call recording, when the file is dehydrated in Zapier it is missing the file extension of `.mp3`. I can manually update the file extension once it’s downloaded and the recording is there and works, but that is not a scalable solution.
This is the full Zap
![](https://uploads-us-west-2.insided.com/zapier-ca/attachment/9441e27f-7bb3-499c-a89e-a6388169ca65.png)
Step 2 gets the ticket details which includes the URL to download the .mp3 file.
Step 3 takes that URL and executes a GET request
![](https://uploads-us-west-2.insided.com/zapier-ca/attachment/36a79932-82f0-4960-92a5-27763b21afb3.png)
which generates the file
![](https://uploads-us-west-2.insided.com/zapier-ca/attachment/79066b79-b32d-4fae-986e-e4b289f7b0b9.png)
Step 4 then takes that file and shares it via slack
![](https://uploads-us-west-2.insided.com/zapier-ca/attachment/04122161-46ff-4558-8e34-1660ef444901.png)
All of this mostly works, but the file that gets downloaded when I click the link in Slack is missing the .mp3 file type
![](https://uploads-us-west-2.insided.com/zapier-ca/attachment/bc97e2c2-9132-4899-97b9-d8bc75161d2f.png)
If I manually update the file extension to be .mp3, the file is able to be opened successfully as an mp3 file and it plays the recording
![](https://uploads-us-west-2.insided.com/zapier-ca/attachment/485ee528-7f12-4b90-b693-3d38161bf811.png)
How can I update this zap so that it correctly processes the file as an mp3?
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