1. SAP Help Portal
SAP S/4HANA Cloud
"Extensibility Inventory": "With this app
you can get an overview of all extensibility items that have been created in your system. [...] You can also see the number of custom fields that have been created for a business context and how many are still available." This documentation directly confirms the app's function for viewing remaining capacity.
2. SAP Help Portal
SAP S/4HANA Cloud
"Extensibility Cockpit": This documentation describes the Extensibility Cockpit as a central entry point with tiles that navigate to other specialized apps
such as "Custom Fields and Logic" and "Extensibility Inventory
" reinforcing that the cockpit itself is a navigator
not the final tool for this specific task.