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.
- Núclea. Runs the SLC and SILOC clearinghouses and their settlement windows.
- STR (BACEN). The BACEN reserve transfer system. It moves the money between reserve accounts.
- Payer’s bank. The bank where the payer pays the boleto.
Diagram
Steps
If your institution’s net position in the collection cycle is a debit, the instruction is in
FUNDING_REQUIRED and you deposit with LDL0022 from 07:00 to 08:00 through POST /v1/str/operations/ldl-deposits.
How you know it finished
The settlement instruction in
SETTLED with the LDL0020R2 control number, and the cycle reconciliation matched against the clearing result.

