My apologies if this question has been asked before - I find the new SCN harder to search.
I have added infotype 1653 to the detail screen in PPOME. As this is a standard SAP infotype, I copied the entries from another infotype when customizing OOFRAMEWORKCUST. I see the tab, but when I click on it, it dumps with exception CX_SY_ASSIGN_CAST_UNKNOWN_TYPE, runtime error ASSIGN_CASTING_UNKNOWN_TYPE. Short text: "The specified type Typ " " is unknown."
I guess there is something I am missing when adding the tab.
Any hints are appreciated.