Hi,I want just that when a new opportunity is created, a set of opportunitylineitems will be created.

This is my code:

trigger Automations on Opportunity (before insert,after insert) {
 List<Opportunity> opptsToInsert = new List<Opportunity>();

     for(Opportunity newOppt : Trigger.new){

          newOppt.NextStep='NextStep';
          opptsToInsert.add(newOppt); 
          }


            //CREATE 1 OPPORTUNITY LINE ITEM FOR EACH NEW OPPORTUNITY WITH THE CORRECT PRODUCT
            List<OpportunityLineItem> opptLineItemsToInsert = new List<OpportunityLineItem>();



        if ((Trigger.isAfter)&&(Trigger.isInsert)){
            for(Opportunity opptInserted : [Select Id, Description from Opportunity where Id in :opptsToInsert])
            {  

                for (Integer i=0;i<4; i++) {
                     OpportunityLineItem newOpptLineItem = new OpportunityLineItem();
                     newOpptLineItem.OpportunityId=opptInserted.Id;
                     newOpptLineItem.Quantity = 1; 
                     // SET PRODUCT
                     newOpptLineItem.PricebookEntryId ='01ui0000002brJzAAI';
                     newOpptLineItem.TotalPrice=100;

                     opptLineItemsToInsert.add(newOpptLineItem);                 

                      }

              insert(opptLineItemsToInsert);
          }  
      }    

}

i get the following error:

Automations: execution of AfterInsert caused by: System.FinalException: Record is read-only

it works if a remove newOppt.NextStep='NextStep';

The problem is that you cannot update fields on triggered records when you are in an after trigger but i have to update information for the new opportunity.

Please can you help me with this?

Thank you very much for any advice.

ps:I know that it very bad use hard coded ids,but this is just a test.

Br.