An SObject Collection Variable is used to store multiple records for a particular object. You can use an SObject Collection Variable as a container in the Flow to store, update, and reference field values for records. For example, if you want to store the account name, billing, and shipping details for 10 accounts; you can use an SObject Collection Variable. In a similar fashion to an SObject variable, you can create an SObject Collection Variable.

You can use an SObject Collection Variable with fast elements to store, update, create, and delete records in bulk.