Custom Connector | Set Http Header template policy is not being applied upon Request

[devfarhanlatif]

I am making a custom connector basically what I want is to automatically add Header and Header value to the request thats being sent to the API so for this purpose I set up a 'Set Http header' template Policy. Now the issue is the header that I put in policy is not being applied upon request at all. When I go to the 'Test' section and see request header my header is not applied but here's the interesting part for me  if I go to my policy and change from "Request" to "Response" the header is shown when I go to 'Test' and see response header 

I need urgent help on it I have limited free time and I really wanted to use this time on development and not on such issues thanks

[sammysword]

I am facing a similar issue. I am trying to write my authorization token into a custom header named X-Auth-Token but when I run the policy nothing shows. I know it is doing something though. I proved this by adding in the X-Auth-Token and then manually putting the token in from Postman, which gives a success. If I change my policy to override so it uses the @headers('authorization') and puts it into the X-Auth-Token, the request fails even when I put the manual token in from Postman. When I put the policy to skip, it then passes again. So I know the value is being overwritten by the policy, I just can't figure out with what or where to see this.

[Syndicate_Admin]

Hey,

Did you try doing  a trace. I was havving some issues with polices not working out as expected and the Trace nutton (right  next to the Send button on the Test page) helped me out a lot.

[sammysword]

@Syndicate_Admin 

I never tried this but it sounds useful. I'm not seeing the Trace button though. This is my Test tab below. Am I looking in the right place?

[sammysword]

@devfarhanlatif 

I finally got this working using the Code tab. Try looking at my post here and see if it helps:

Set HTTP Header Policy - Use Substring of Authoriz... - Power Platform Community (microsoft.com)

[Syndicate_Admin]

Glad you got it working and thankyou for that post!

Just an FYTI the reace is on the APIM site, not the powerapps site.  Sure would be nice to have it from within the powerapps environment too!