Hi I have already created the test app. And create the p12 certificate already with openssl but I still could not obtain any visa merchant offers data through the test app. I tried the link inside the browser which is "https://sandbox.api.visa.com/vmorc/offers/v1/all" and insert the userid and password as query string. Please do help me how to view through the browser the json.
I am working to see what the issue is here. I will get back to you soon.
We need you test scripts which you used to pull data for offers. Can you please email these to email@example.com.
Here is an alternative option.
Please use this API to retrieve all offers available in sandbox https://developer.visa.com/products/vmorc/reference#vmorc__offers_data_api__v1__Retrieve_All_Offers
Let me know if this helps!