Settle within the same bank

How Núclea settles an operation when the debtor and the creditor use the same settlement bank, without the STR, and how you answer through Lerian.

Settle when the debtor and the creditor are served by the same settlement bank. This happens, for example, when your institution settles for an acquirer and is also the merchant’s domicile.

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.

​

Diagram

---

​

Steps

---

#	From	To	Message	Lerian API	What happens
1	Núclea	Lerian	LTR0007		Núclea informs an operation between two participants that your institution settles for.
2	Lerian	Your institution	Lerian API	GET /v1/lbtr/nonliquidante-operations	Read the announced operation and whether Núclea asked for a confirmation.
3	Your institution	Your institution	Internal step		Check the debtor’s account. If you will confirm, debit and credit the two internal accounts. If you will reject, book nothing.
4	Your institution	Lerian	Lerian API	POST /v1/lbtr/nonliquidante-operations/{operationId}/decision	Answer CONFIRM after the two entries, or REJECT. The answer is mandatory.
5	Lerian	Núclea	LTR0008		Lerian sends your answer to Núclea.
6	Núclea	Lerian	LTR0008R1		Núclea answers the confirmation.
7	Lerian	Your institution	Lerian API	GET /v1/lbtr/commands/{commandId}	Read the command and Núclea’s answer, as it arrived.

​

How you know it finished

---

The command in ANSWERED with LTR0008R1. After a confirmation, both internal entries carry the same reference. After a rejection, there are no entries. If the command ends in REFUSED or FAILED, reverse the two entries. FAILED means that Lerian SILOC will not deliver the decision, or that two operators closed it because Núclea never answered. After the LBTR close of the movement day, at 17h30 Brasília or at the later close an operator recorded from Núclea’s extension, Lerian SILOC sends no LBTR decision for that movement day, so a new decision for that day also ends in FAILED.

​

Related

---

• Pay the net debit position
• Lerian SLC
• Lerian SILOC