You find the Calendar view in activities is starting from Monday till Sunday as default, however you want to change the first working day to Sunday at the first column.
Reproducing the Issue
- Go to the Account Management work center.
- Go to the Activities view.
- Select the button Show Calendar.
You can see the week starts from Monday as default.
This is the designed behavior of SAP Business ByDesign.
Current release of SAP Business ByDesign do not support the Calendar to show the start day as Sunday.
KBA , AP-BP-BPT , Business Partner Template , How To