The function Module 'CONVERSION_EXIT_ALPHA_OUTPUT' is used to remove the leading zeros in a field.
the following is a sample code which i have used for 'Commitment item' in my report. replace the field with your required field.
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
INPUT = IT_FMIT1-RFIPEX
OUTPUT = IT_FMIT1-RFIPEX.
Rewards if useful.
Conversion exit ALPHA, external->internal
ALPHA conversion is used especially with account numbers. During conversion from the external to the internal format, the system checks to see if input in the INPUT field is purely numeric, that is, if this input consists only of numbers, possibly with spaces before and after them. If this is the case, then the number string is inserted right- justified in the display field OUTPUT and all spaces to the left of the value are filled with zeroes ('0'). If the input is not purely numeric, it is inserted in the display field from left to right and all extra spaces are filled with blanks.
(Input field and output field are both eight characters in length)
1. '1234 ' --> '00001234'
2. 'ABCD ' --> 'ABCD '
3. ' 1234 ' --> '00001234'
Conversion from the internal to the external format (function module CONVERSION_EXIT_ALPHA_OUTPUT) is undertaken in exactly the opposite manner.