OTBI - Count Function

Summary:

Content (required):

I have the below requirement,

A report to capture all transaction details and the entry users has already been created. (The format is attached herewith).

Creation User has been entered as section. The requirement is to get the count of invoices for each BU and User, either in the section level or as a column in the table.

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

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