SubscriptionProductUserLeadConvert.tgr

trigger SubscriptionProductUserLeadConvert on Lead (before update) {

	// create mapping of Lead Id to Contact Id
	Map<Id, Id> mapLeadIdContactId = new Map<Id, Id>();
	// create mapping of Lead Id to Account Id
	Map<Id, Id> mapLeadIdAccountId = new Map<Id, Id>();

	// add the Lead Id:Contact Id pair to the mapping above for each Lead converted into a Contact
	for (Lead l : Trigger.new) {
		if (l.isConverted) { 
			mapLeadIdContactId.put(l.Id, l.convertedContactId);
			mapLeadIdAccountId.put(l.Id, l.convertedAccountId); 
			}
		/*if (l.isConverted && l.convertedAccountId != null) {
			mapLeadIdAccountId.put(l.Id, l.convertedAccountId);
			}*/
		}

	// store a list of Product User records, including the Subscription Account Id, looking up to a Lead stored in the Lead:Contact mapping
	List<Product_User__c> listProductUser = [SELECT Lead__c, Contact__c, Subscription__c, Subscription__r.Account__c, External_Id__c
											 FROM Product_User__c 
											 WHERE Lead__c IN :mapLeadIdContactId.keySet()];

	Map<Id, Subscription__c> subscriptionMap = new Map<Id, Subscription__c>();
	// iterate through all Product User records that lookup to a Lead
	for (Product_User__c p : listProductUser) {
		p.Contact__c = mapLeadIdContactId.get(p.Lead__c); 
		if (String.isBlank(p.Subscription__r.Account__c)) {
			Subscription__c subscription = new Subscription__c(
				Id = p.Subscription__c,
				Account__c = mapLeadIdAccountId.get(p.Lead__c));
			subscriptionMap.put(subscription.Id, subscription);
		}

	}

	List<Subscription__c> listSubscriptions = subscriptionMap.values();
	try {
		update listSubscriptions;
	}
	catch (DmlException dmx)
	{
		// always handle DML Exceptions on cross object updates from a trigger
	}

	update listProductUser;

}