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Trainee second visionitTrainee second visionit 

whenever comment is added on case then update case_comment__c field value on case object

i have a requirement for,
whenever comment are added in case then update case_comment__c field on case object in such way that it's add to orignal value..
Best Answer chosen by Trainee second visionit
UjwalaUjwala
hi, in above workflow->field update
Try formula field in field update similar like this with exact field you want, 
Priorvalue( case_comment__c ) +CommentBody 

All Answers

MagulanDuraipandianMagulanDuraipandian
Use Workflow rule. Create workflow rule on Case Comment object. Create a Field Update on Case object's Case_Comment__c field.

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Magulan Duraipandian
www.infallibletechie.com
Trainee second visionitTrainee second visionit
@Magulan D but its overwrite previous value.i want to add new value but not change orignal value..
UjwalaUjwala
hi, in above workflow->field update
Try formula field in field update similar like this with exact field you want, 
Priorvalue( case_comment__c ) +CommentBody 
This was selected as the best answer
Trainee second visionitTrainee second visionit
thanks..Ujwala.