We are a Marketo partner who often assist our mutual customers in cleaning up their Marketo data by identifying specific Lead IDs who need to be deleted or modified. This is the best way for us to identify the records because the ID is unique.
Unfortunately, ID is not a filter that can be used in a Smart List. I have heard of the workaround to find the lead by using the URL, but this is not a realistic option if we provide them with a list of 10,000 records to delete.
Will the ID ever be available as a filter?