SAP ABAP Data Element LSCRN (Logical screen number) is used by

• Function Module (5)
• Table (3)
• View (2)

#	Object Type	Object Name	Object Description	Package	Structure Package	Software Component
1	Function Module	FIND_LOGICAL_SCREEN REFERENCE(LSCRN) LIKE T3130C-LSCRN	Find the logical screen number based on the physical number	LMOB	APPL	SAP_APPL
2	Function Module	RF_SW_T3130C_READ REFERENCE(I_LSCRN) LIKE T3130C-LSCRN OPTIONAL	Select from table T3130C - 1st layer	LMOB	APPL	SAP_APPL
3	Function Module	RF_SW_T3130E_READ REFERENCE(I_LSCRN) LIKE T3130E-LSCRN OPTIONAL	Select from table T3130E - 1st layer	LMOB	APPL	SAP_APPL
4	Function Module	T3130C_READ REFERENCE(I_LSCRN) LIKE T3130C-LSCRN OPTIONAL	Select from table T3130C - 2nd layer	LMOB	APPL	SAP_APPL
5	Function Module	T3130E_READ REFERENCE(I_LSCRN) LIKE T3130E-LSCRN OPTIONAL	Select from table T3130E - 2nd layer	LMOB	APPL	SAP_APPL