The document discusses Mule Batch Commit, which allows accumulating a subset of records in a batch flow to upsert in bulk to an external source rather than individually. It requires familiarity with Anypoint Studio and batch processing. The Batch Commit component is configured with a display name and commit size number of entries. It can only be used in the batch process phase, wrapping the final element in a batch step. Connectors like Salesforce can track record-level errors without failing the whole commit.