This flow is a suggested reading of the Núclea and BACEN manuals. The manuals prevail over this page. Your institution, as the participant, validates the flow and implements it on the Lerian APIs. See how to read the diagrams.
Participants
- Your institution. The participant that runs the journey and books its effects.
- Lerian. Lerian SLC, Lerian SILOC and Lerian SPB. They exchange the messages with Núclea and STR, and expose the API and the events your institution uses.
- Receivables registrar. Records the contract effect (lien, fiduciary assignment or change of holder) on the receivable.
- Acquirer. Pays the merchant’s card receivables and reports each settlement to Núclea.
- Núclea. Runs the SLC and SILOC clearinghouses and their settlement windows.
Diagram
Steps
How you know it finished
Every receivable in the schedule matches a credit received at the domicile, or opens an exception.

