I am using Zoho Sites to create a Quote Page to display dynamic content from a Zoho CRM Invoice record: 

We need to be able to fetch a CRM Invoice record and display info in the html as dynamic variables. I have gone through the dynamic content documentation page but I am still lacking a clear guidance what is needed.

I have been using the document in the link below as reference but still not helping. 

https://help.zoho.com/portal/en/kb/zohosites/help-guide/manage/dynamic-content/articles/dynamic-content

Basically I need to search Invoice record in CRM based on a "hash" value passed as parameter, which is a field in CRM Invoice Module.  How to get the url parameter named "hash", and use it as argument in a function that will search the record in CRM via API and assign the fields as variables. And then use these variables in code snippets in the Page layout in Zoho Sites. Example: 

<div>

            <div class="content-block">

            <p>Order Number: <%=invoice_number%></p>

            <p>Order Date: <%=order_date%></p>

            <p>Estimate Delivery Time: <%=due_date%></p>

            <p>Language:<%=language%></p>

            <p>Delivery Method: <%=delivery_method%></p>

        </div>

It would be great to have more tutorials and clearer documentation how to achieve this.  Even for someone who is familiar with Zoho CRM Customization and Zoho Creator, it is very difficult to learn how to work with Dynamic Content on Zoho Sites.  I would appreciate some guidance. 

Thank you
MF