I am using Business Objects (Webi) and I would like to automatize the update of a specific request and get the data from this request directly in Excel.
Does someone has any experience with VBA & BO? Any piece of advice would be welcome
But if you are not comfortable with coding... it's far easier to connect to SAP BO Universes via PowerQuery (will need Excel 2016 or 2013 with specific SKU etc).
PowerQuery/Get & Transform is Excel Add-in, and from Excel 2016, it comes packaged out of the box. It's very powerful tool for data gathering and transformation.
PowerBI is stand-alone tool that has PowerQuery as part of it's component. There is cloud subscription, but Desktop is free.
Do a google search and you'll find plenty of info.
power query and power bi are both free. Power Query is strictly query plus some pretty functional transformation functions. Power BI contains the same functionality as powerquery but also adds nifty dashboardish type display.