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guna malliguna malli 

How to update child object formla field value on parent object field value.How many ways achieve this?Explain

I have two objects like A and B.Here A is the parent of B.In B object have filed like Total this is formula field.i want this child formula field value update on parent object total field value.After create child record
RKSalesforceRKSalesforce
We can achieve this by using RollUp summary field in case of Mastedr Detail relationship.
In case of Lookup Relationship we need to write a trigger o chils object and trigger.

Regards,
Ramakant
guna malliguna malli
Hi Ramakant

Thanks for your quick replay.

Here thing is child field is formula field value.is it posible in rollup summary? while creating a rollup summary field child formula field is not shown.
Normal fields are shown in dropdown.Any Other way to achieve?
Lalitha Trail HeadLalitha Trail Head
If A and B have a Master-Detail Relationship, use a workflow. If not, u can use a process builder or write a trigger