Hello ,i want to auto-create Opportunity Products i written this apex code but why showing error

Hi @Jyoti Bhosale,

Insert DML will not accept the ID field. Also, you need to use the Opportunity Product (API Name: OpportunityLineItem) standard object instead of Product2.

You can use the below code.

public static void createProductMethod(List<Opportunity> opportunities) {
	List<OpportunityLineItem> productList = new List<OpportunityLineItem>();
	for (Opportunity opp : opportunities) {
		OpportunityLineItem product = new OpportunityLineItem(Opportunity = opp.Id, Name = opp.List_Of_Products__c);
		productList.add(product);
	}
	insert productList;
}

Regards,

Dinakar K