Deadlocks involve at least two transactions that are attempting to update overlapping sets of objects. Note that if the
transaction involves a summary field, the parent objects are locked, making these transactions especially prone to
deadlocks. And I kown that the batch apex are process in parallel, does that mean each batch are processed in different transaction? If so, is it possible to cause deadlock??
I hope you can help me on this..Im working with singleEmail to send an email to a particular sales representative on every territory. but every time I invoked my trigger via update of my objects, it returns an exception. The error is: System.EmailException: SendEmail failed. First exception on row 0;
first error: INVALID_ID_FIELD, WhatId is not available for sending
emails to UserIds.\.: Trigger.Notify_Rep_Trigger: line 90, column 21
my code is written below:
Account territory = [select Territory_Name__c from Account where Id =:data.Account_ID__c];
if(territory.Territory_Name__c != null) {
List<string> splitID = territory.Territory_Name__c.split(';', -1); Set<string> tID = new Set<string>(); tID.clear();
List<Territory> territoryId = [Select id From Territory where name in :splitID];
List<UserTerritory> usersId = [Select UserId From UserTerritory where territoryid in :territoryId];
for(integer x=0; x < usersId.size(); x++) { tID.add(usersId[x].UserId); }
List<User> emailAdd = [select Id, email from User where Id in :tID];
Messaging.SingleEmailMessage mail = new Messaging.SingleEmailMessage(); List <String> Addresses = new List<String>();
for(integer i=0; i < emailAdd.size(); i++) { //String[] toAddresses = new String[] {emailAdd[i].email};
