Function modules in function module exits

[Former Member]

Hi,

Could you please clarify the concepts of function moduels and funtion 'X' modules in function module exits.

Thanks in advance.

[Former Member]

Hi,

Could you elaborate as to what u r looking for maybe i will be able to help

Thanks

[Former Member]

Hi mallela,

1. in user-exits,

this thing happens.

a) the main program,

somewhere in the code, (eg. before saving)

calls the SPECIAL SYNTAX

CALL CUSTOMER-FUNCTION '001'.

b) This special syntax

searches for a FM

with the following format of name.

'EXIT' + CURRENT PROGRAMNAME + '001'

c) This new found FM

is called in which parameters

are imported/exported etc.

d) THIS FM is called X FM for user-exit.

2. This X FM is also but a simple FM,

the only difference is

a) its naming convention

b) its detected by the special syntax

regards,

amit m.