ABAP code for validation OB28

[Former Member]

I want to make a validation for callup point 3 'Complete Document'

I would like a validation in bool_data-bseg that only 1 transaction type (bewar) or no transaction type is used in any of the line items. If 0 or only 1 transaction type has been used there is no error. If more than 1 transaction type is used in the line items then an error message should appear that only 1 transaction type should be used.

ABAP Code would be roughly:

LOOP AT bool_data-bseg INTO bseg WHERE bewar <> ''.

...

ENDLOOP

if bewar_count >1

b_result=false.

else .

b_result=true.

end if.

Please give some hints for the code at '...'.

[Former Member]

Moderator message - Essentially duplicate post locked Rob