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My source is EmpID, Salary- (101, 1000)(102, 2000)(103, 3000).
In the Target I want the following EmpID, Salary,
Composite_Salary- (101, 1000, 1000)(102, 2000, 3000)(103,
3000, 6000). Please guide on how to build the mapping.

Answer Posted / nirosha g

Use Expression Transformation for this.
Create variable port after the two input ports:
v_cumm_sal = v_cumm_sal+sal;
o_cumm_sal = v_cumm_sal;

Connect The ports id,sal and o_cumm_sal to target

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