@Yuvaraj Madheswaran Welcome to Microsoft Q&A Forum, Thank you for posting your query here!
I see that you want to know if the url path for the APIM is case sensitive or not.
The url path
(API URL Suffix) is not case sensitive. Meaning both customAppl and customappl will be reaching the same API in APIM.
I have done a repro at my end too. You can see the API URL Suffix
echoAppl and echoappl being used.
I tried accessing it with both echoAppl and echoappl and it worked fine since it hit the same API in APIM. So it is not case sensitive.
- https://navbaapimdel.azure-api.net/echoappl/resource?param1=sample
- https://navbaapimdel.azure-api.net/echoAppl/resource?param1=sample
Hope this helps.