Invalid ID on post request

#1

I made a test payment option so that I can learn how the api system works, I sent a post request and it returned an invalid ID response.

Here is the URL

https://www.paynow.co.zw/interface/initiatetransaction?id=12985&reference=invoice1&amount=99&additionalinfo=This+is+a+test+payment+to+see+how+the+API+works&returnurl=https://www.google.com/?gws_rd=ssl&resulturl=https://www.google.com/?gws_rd=ssl&status=Message&hash=B9226E43FC77CDE3D924D5B6F4FAE89924B2E501C3234F0273D2F5142258AA00C8C35196F98A2955DDF092399E0885B5D88F9C05D84DE63B20DE7B1218E3A9EE

Getting error invalid id
#2

Please check that you are posting the fields in the HTTP request body and not part of the URL while sending the POST request to initiate transaction.

#3

It looks like this worked

I should of tried this earlier, thank you very much for the response