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Andres Monge 9Andres Monge 9 

Error Trigger insert Lookup Id into the Custom Object

I have to elements united with a lookup relation: bMerchants and Products.
If you insert one Merchant two Products will be create, I write a trigger but it throw me this error:

Error: Invalid Data. 
Review all error messages below to correct your data.
Apex trigger InsertProducts caused an unexpected exception, contact your administrator: InsertProducts: execution of AfterInsert caused by: System.StringException: Invalid id: 24: Trigger.InsertProducts: line 29, column 1

This is the code of the Trigger:
trigger InsertProducts on Merchant__c (after insert) {

  List<Product__c> products= new List<Product__c>();

  for(Merchant__c m: Trigger.new)
        Product__c pproducts = new Product__c();
        pproducts.Merchant__c = String.valueOf(m.Name);
  insert products;


I made everything I don't know what to do, please if any body could help me I would appreciate.

Thanks and Regards.
Not sure what you are trying to do but try replacing whatever is on line 8 in your sample with this:
pproducts.Merchant__c = m.Id;