Dear Experts.
We are implementing BOS.
Help me to resolve this issues (Validation). system should not allow to select same BOQ line item . Once the user select the same line item more then one then system should stop and give the error message.
For example as per below screen item no. 50 and item no. 60 are same so system should not allow this to happen (I mean Save).
I am using exit EXIT_SAPLMLSP_030 for this validation but system is not behaving as I expected.
Can we do this by any chagen in configuration steps???