SAP ABAP Function Module CONVERSION_EXIT_PERI6_INPUT (Conversion for Six-Digit Periods (for example, Month)) is using

• Class (1)
• Table/Structure Field (6)
• Function Module (1)
• Message Number (8)
• Class Method (1)
• Table (3)

#	Object Type	Object Name	Object Description	Note
1	Message Number	RRKEB - 020	Date format in user master record cannot be interpreted
2	Message Number	RRKEB - 021	Enter period in the format __.YYYY
3	Message Number	RRKEB - 022	Enter the period in the format __/YYYY
4	Message Number	RRKEB - 023	Enter the period in the format __-YYYY
5	Message Number	RRKEB - 024	Enter the period in the format YYYY.__
6	Message Number	RRKEB - 025	Enter period in the format YYYY/__
7	Message Number	RRKEB - 026	The year number is larger than 2500 (check your entry)
8	Message Number	RRKEB - 027	Enter the period in the format YYYY-__