Apex Trigger to update the value of Related to company field if it is null only on the task object based on the related to contact

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I need to write a trigger to pre-fill the value of "Related to: company" field ( if it is null only) on the task object based on the "related to: contact" field value before submitting the record. Please help me how can I achieve this.
Mar 16 in SalesForce by surbhi
• 3,810 points
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1 answer to this question.

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trigger TaskTrigger on Task (after update) { for(Task newTask : Trigger.New){ // Task.WhoId != null ----Checks Contact is null or not // ((string)Task.WhoId).startsWith('003') ----Checks Task is related to Contact // Task.WhatId == null ----Checks the related to field is null or not if(Task.WhoId != null && ((string)Task.WhoId).startsWith('003') && Task.WhatId == null ){ // Add your code as per your needs. } } }

answered Mar 17 by CoolCoder
• 4,360 points

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