Hi Sathar,
If I understand correctly, you are clubbing Company code, BE & RU and making it one field and then referring/using it in your program. If my understanding is correct, then you will not have any issue. I am a functional, so explained the way I understood it that time 
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One word of caution, I removed preceding zero from all my rental objects (not sure if it is needed though).
Regards,
Amar