Request Reference. This is a reference value that Developers can use to track API requests and responses. It is solely for tracking purposes.

The BFID, or Bluefin ID, is the value that is created when a tokenization request is made (i.e., it is the value retrieved from an iFrame transaction, or a /tokenization/tokenize request). The BFID refers to that specific tokenization request and is necessary for tokenization and detokenization.