Universal Containers uses a simple Order Management app. On the Order Lines, the order line total is calculated by multiplying the item price with the quantity ordered. There is a Master-Detail relationship between the Order and the Order Lines object.
What is the best practice to get the sum of all order line totals on the order header?
A. Declarative Roll-Up Summaries App
B. Roll-Up Summary field
C. Process Builder
D. Apex Trigger
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What even IS a “Declaritive Roll Up Summaries App”?
Also, I agree the answer is B
You cannot to multiplication with rollup summary, so B cannot be correct
the requirement is to get the SUM of the order lines on the Order header. so Roll up summary filed should fulfill it. Answer B
Correct Answer is B