Complex Payload

Summary:

I have requirement where I need to append rows in aan existing node and replace one of the column. I tried data stitching but didn’t work out.

In short how can we prepare a parent-child-child payload in OIC?

Content (required):

Parent (Header) - Child (Lines) - Child (Attachment) need to replace fileContent attribute with the response of an existing integration.

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):