Hi @ccg1706
What do you mean by "conditional content" ?
You can use the personalisation syntax to generate content according the message datas :
<% switch( recipient.field1.toString()){
case "CASE1" : %>
<p>My content CASE1</p><img src="...pic1.jpg"/>
<% break;
case "CASE2" : %>
<p>My content CASE2</p><img src="...pic2.jpg"/>
<% break;
default : %>
<p>My content default</p><img src="...picDefault.jpg"/>
<%}%>
You can also choose to make 2 differents delivery models, if you can split your target in a workflow, then send those 2 differents deliveries with an upstream targeting workflow. It depends of the complexity in the difference between your 2 business cases.
Also, you can use the content management module to build complex delivery content : https://experienceleague.adobe.com/docs/campaign-classic/using/sending-messages/content-management/about-content-management.html?lang=en
It's more difficult to handle (you have to master XSL or JST) but can achieve great things.
Cedric