Solution : https://service.sap.com/sap/support/notes/504123 (SAP Service marketplace login required)
Key words :
sap list viewer - alv, sap list viewer lists, case-related invoice processing, active invoices visible-> number, open items visiblethe number, processing options-> number, -step list format, tab page titles, respective tab page, menu option 'environment'
Related Notes :
| 646498 | IS-H: NA30 - Performance in case-related invoice processing |