CCAvenue Sandbox Site For Testing

From my experience, this is not a great app for sandboxing. If you download the manual (linked by @rgerculy you should see the information for integration. However, here is what must happen:

First, login to the merchant account and go to the integration section and download the sample code. There you'll see some PHP test code. You can probably save time by working this into your application.

Next, make sure to activate your remote merchant processing. By default, its deactivated.

Finally, it looks like you can use 4111-1111-1111-1111 to simulate a failure. To simulate success, you must use a real card for testing - less than $1USD - and put the term SUB-MERCHANT TEST in the extra notes text area.

There doesn't seem to be an easier way to do this, that I'm aware of. :(

CCAvenue removed the PDF from their website so I removed the official link.

Removed broken links. I found another copy but at this point it might be outdated. https://docplayer.net/12395510-Ccavenue-world-integration-manual-version-1-0.html

Check this manual , it might be what are you looking for. There is something about testing the integration on page 19.

I found another one which seems to be a more recent copy with a more up to date explanation. https://jemds.com/data_pdf/1_CCAvenue%20Integration%20-%20Ver%202.0.pdf