Message Number list used by SAP ABAP Program LE20LF23 (Include LE20LF23)

#	Object Type	Object Name	Object Description

1	Message Number	AH - 604	Backbilling group &1 in step &2 is inconsistent
2	Message Number	AH - 767	Operand &1 used for proration purposes only
3	Message Number	AH - 768	Variant &2 updates to the installation facts
4	Message Number	AH - 770	Variant &1 updates to the correction periods
5	Message Number	AH - 772	Operand &1 is provided by a special update
6	Message Number	AH - 789	Variant &1 updates from correction period to periodic billing period
7	Message Number	AH - 862	Not permitted to use only presorting keys with no subtotal
8	Message Number	AH - 602	Schema step &1 cannot be executed
9	Message Number	AJ - 171	Deletion operand &1 in step &2 is inconsistent
10	Message Number	AJ - 593	Step &1: Variant category &2 is not valid
11	Message Number	AJ - 573	Backbilling is not allowed in schema &1
12	Message Number	AJ - 572	Period-end billing rate &1 cannot be used
13	Message Number	AJ - 478	&1 deletion operand: Control of billing in advance is not consistent
14	Message Number	AJ - 234	No default values were entered for the deletion operands
15	Message Number	AJ - 180	Output operand &1 in step &2 does not correspond to deletion operand &3
16	Message Number	AJ - 172	Operand &1 is not used as a deletion operand
17	Message Number	AJ - 170	Operand &1 is used twice in deletion variants
18	Message Number	E9 - 165	No changes were made
19	Message Number	E9 - 890	Internal error: Error when reading internal table &1 in &2 &3