I am building an custom integration for an app called Cherwell. Per the documentation, they use OAuth 2.0. Per my review, I think Session Authentication will work better as they simply need to get the Access Token. Here is the problem; I can use Postman to retrieve the access and refresh token, but when I try in Zapier UI Builder, The response is status = 404. Hoping another set of eyes can find my issue.
Postman: Response 200 and info I need
![](https://uploads-us-west-2.insided.com/zapier-ca/attachment/2cf623c4-3eb0-4001-b7b2-7e8116f8f219.png)
Zapier:
![](https://uploads-us-west-2.insided.com/zapier-ca/attachment/65351aa0-73d8-4242-9a19-15f67e245ce4.png)
![](https://uploads-us-west-2.insided.com/zapier-ca/attachment/2508dd08-5e51-4d56-bb42-68ab83603d9e.png)
![](https://uploads-us-west-2.insided.com/zapier-ca/attachment/6f91b2aa-b10c-4870-9857-528330499a3a.png)
![](https://uploads-us-west-2.insided.com/zapier-ca/attachment/035cfa37-e749-4956-9e31-f6d134105a87.png)
![](https://uploads-us-west-2.insided.com/zapier-ca/attachment/f8a27475-db07-4fa8-9e82-76b995661f3d.png)
![](https://uploads-us-west-2.insided.com/zapier-ca/attachment/a8fd3192-a5b6-4643-a61a-0ae377d53dc6.png)
Best answer by Zane
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