BRF+ data Validation

[sarvesh_ranjan]

Hi Experts,

I have BRF+ table where i created decision table with three columns plant, profit center and indicator.

I have a condition for a PLANT and ACTIVE X indicator combination if the value already exists in decision table it should throw an error when user tries to create the same entry.

Input Fields = PLANT, INDICATOR

Output Fields = PROFIT CENTER

1)	Plant	profit centre	Indicator
	Plant 1	1	X
	Plant 1	2	X	Error - profit centre already active for this plant
2)	Plant	profit centre	Indicator
	Plant 1	1	X
	Plant 2	1	X	Possible

I tried using Rule Set and Custom Exit but unable to validate existing entries using loop.

I am new to BRF+ Concept so any help would be appreciated.

Thanks.