May I know what problem you are experiencing when using the Render Email Content task?
Regarding your question: You should be aware that the Render Email Content task (1) and the REST API Content Creation (Email) Service (3) aren’t exactly the same. You can compare the Content Creation (Email) Service the best with the Create Email Content task (2). Because the discription of the Render Email Content task is:
The Render Email Content task pre-renders emails from a template’s Email Context and stores them in the File Store, along with their attachments.
Where the description of the Create Email Content task is:
The Create Email Content task generates a set of email content items from a template’s Email Context, which are then sent directly to the recipient set in each record.
Which is the same as the ‘description’ of the Content Creation (Email) Service (4):
You want to run a content creation operation to create and send email content using a design template and an existing set of Data Records as inputs.
PReS Workflow 2020.1 User Guide
- Render Email Content
- Create Email Content
PReS Connect 2020.1 REST API Cookbook
- Content Creation (Email) Service
- Running a Content Creation Operation for Email By Data Record (Using JSON)