Zoho Invoice API not working - zoho

Question

I am trying three Zoho Invoice API's but they are not working.
The Invoice API's are:
List Contacts(Get Method)
List Customer Payments(Get Method)
Create a Customer Payment(Post Method)
List Contacts(Get Method)
For List Contacts I have used the url as
https://invoice.zoho.com/api/contacts/?authtoken=&scope=invoiceapi
but my response is
<Response status="0">
<Code>5</Code>
<Message>
<![CDATA[ Invalid URL Passed ]]>
</Message>
</Response>
List Customer Payments(Get Method)
For List Customer Payments I have used URL as
https://invoice.zoho.com/api/customerpayments?authtoken=&scope=invoiceapi
My response is
<Response status="0">
<Code>5</Code>
<Message>
<![CDATA[ Invalid URL Passed ]]>
</Message>
</Response>
Create a Customer Payment(Post Method)
To create a customer Payment I am using create map fields and Post URL method like below
<%{
map1 = map();
map1.put("date", "2014-3-24");
map1.put("amount", "10100");
map1.put("customer_id", "<my custome ID>");
map1.put("invoice_id", "<my Invoice ID>");
map1.put("authtoken", "<my authtoken>");
map1.put("scope", "invoiceapi");
post = postUrl("https://invoice.zoho.com/api/customerpayments", map1,false);
PostResponseCode=post.get("responseCode");
PostResponseText=post.get("responseText");%>
<%=PostResponseCode%><br/>
<%=PostResponseText%>
<%}%>
but my Response is
500
The server encountered an unexpected condition which prevented it from fulfilling the request
Can anyone please help me with this

Answer 1

This is Reshma from Zoho Invoice Team. We recently launched our REST API for Zoho Invoice and Zoho Books. What I would suggest you to do is , include the tag V3 in your URL so the api call looks like the one shown below:
https://invoice.zoho.com/api/v3/entity_name?authtoken=*************&organization_id=******
You'll find answers to most of your questions on our API documentation here . Also you can always reach us out at support#zohoinvoice.com
Let me know if this worked out for you.
Regards,
Reshma