My Bundle product has 3 product options A, B and C. I have Count__c field on quote object and I want to use this field value to update quantity of product option A only.
4 answers
You can make a price rule that will update the quantity on the line with the value from Count__c.
You will need 2 price conditions (3 conditions if you are also going to check that the product A is part of a bundle)
1. Quote Count__c > 0
2. Quote Line product code = A
And the action is the one that will actually update the quantity
You can learn more about price rules here: https://help.salesforce.com/s/articleView?id=sf.cpq_price_rules_intro.htm&type=5
