BACEN Message Types

FluxiQ SPB supports all 979 message types defined by the Brazilian Central Bank (BACEN) for communication over the RSFN (Rede do Sistema Financeiro Nacional). Messages follow the ISO 20022 standard adapted for the Brazilian financial system.

Message Type Naming Convention

BACEN messages follow the pattern {SYSTEM}{NNNN} where:

• {SYSTEM} is a three-letter code identifying the settlement system
• {NNNN} is a four-digit sequential number

Each message has a corresponding response type prefixed with R1, R2, or R3:

Response	Meaning
R1	Protocol acknowledgement (message received)
R2	Business validation result (accepted or rejected with reason)
R3	Settlement confirmation or final status

Settlement Systems

STR - Sistema de Transferencia de Reservas

The STR is BACEN's Real-Time Gross Settlement (RTGS) system. It processes high-value, time-critical transfers between financial institutions in real time.

Operating hours: 06:30 to 17:30 BRT (Brasilia Time)

Message	Description
STR0001	Reserve transfer request
STR0002	Reserve transfer confirmation
STR0003	Balance inquiry
STR0004	Balance response
STR0005	Statement request
STR0006	Statement response
STR0007	Transfer cancellation request
STR0008	Transfer cancellation response
STR0009	Scheduled transfer
STR0010	Position inquiry

<!-- Example: STR0001 Reserve Transfer Request -->
<DOC xmlns="http://www.bcb.gov.br/str">
  <BCMSG>
    <IdentdEmissor>12345678</IdentdEmissor>
    <IdentdDesworko>99999999</IdentdDesworko>
    <NUOp>2026010100001</NUOp>
    <DtHrMsg>2026-01-15T10:30:00-03:00</DtHrMsg>
  </BCMSG>
  <SISMSG>
    <STR0001>
      <CodMsg>STR0001</CodMsg>
      <NumCtrlIF>IF20260115001</NumCtrlIF>
      <ISPBIF>12345678</ISPBIF>
      <ISPBFav>87654321</ISPBFav>
      <Valor>150000.00</Valor>
      <DtMovto>2026-01-15</DtMovto>
      <FinlddTrsf>1</FinlddTrsf>
    </STR0001>
  </SISMSG>
</DOC>

LPI - Liquidacao por Prioridade Intradiaria

The LPI system handles intraday priority-based settlement, allowing institutions to manage liquidity by assigning priorities to pending transfers.

Message	Description
LPI0001	Priority transfer request
LPI0002	Priority assignment
LPI0003	Priority modification
LPI0004	Queue position inquiry
LPI0005	Queue position response

TED - Transferencia Eletronica Disponivel

TED handles same-day electronic funds transfers between different financial institutions. Transfers via TED are settled in real time through the STR.

Message	Description
TED0001	TED transfer request
TED0002	TED transfer confirmation
TED0003	TED transfer rejection
TED0004	TED return request
TED0005	TED return confirmation
TED0006	TED cancellation request

DOC - Documento de Credito

DOC is used for credit transfers that are settled on the next business day (D+1). While less common since the introduction of Pix, it remains supported for legacy operations.

Message	Description
DOC0001	DOC transfer request
DOC0002	DOC transfer confirmation
DOC0003	DOC batch submission
DOC0004	DOC batch response

SEL - Sistema Especial de Liquidacao e Custodia

SEL handles the settlement and custody of federal government securities (titulos publicos federais).

Message	Description
SEL0001	Securities transfer request
SEL0002	Securities transfer confirmation
SEL0003	Custody position inquiry
SEL0004	Custody position response
SEL0005	Securities pledge
SEL0006	Securities release
SEL0007	Settlement instruction
SEL0008	Settlement confirmation

CTP - Cetip (Central de Custodia e Liquidacao)

CTP manages registration, custody, and settlement of private fixed-income securities, derivatives, and other financial instruments.

Message	Description
CTP0001	Instrument registration
CTP0002	Registration confirmation
CTP0003	Trade settlement request
CTP0004	Trade settlement confirmation
CTP0005	Position inquiry
CTP0006	Position response

LDL - Liquidacao Diferida Liquida

LDL handles deferred net settlement, where transactions are accumulated throughout the day and settled in net positions at designated settlement windows.

Settlement windows: 11:00, 14:00, and 17:00 BRT

Message	Description
LDL0001	Batch submission
LDL0002	Batch acknowledgement
LDL0003	Net position calculation request
LDL0004	Net position result
LDL0005	Settlement window status
LDL0006	Settlement confirmation
LDL0007	Bilateral net position

CAM - Cambio (Foreign Exchange)

CAM handles foreign exchange operations registered with BACEN, including trade-related FX, financial FX, and interbank FX transactions.

Message	Description
CAM0001	FX contract registration
CAM0002	FX contract confirmation
CAM0003	FX settlement request
CAM0004	FX settlement confirmation
CAM0005	PTAX rate inquiry
CAM0006	PTAX rate response
CAM0007	FX position report

CIR - Meio Circulante (Cash Operations)

CIR manages physical cash operations between financial institutions and the Central Bank, including cash ordering, deposits, and distribution logistics.

Message	Description
CIR0001	Cash order request
CIR0002	Cash order confirmation
CIR0003	Cash deposit notification
CIR0004	Cash deposit confirmation
CIR0005	Cash balance inquiry
CIR0006	Cash balance response
CIR0007	Cash transport schedule

Message Processing in FluxiQ

Inbound Messages (BACEN to Institution)

1. BACEN Gateway receives the XML message from IBM MQ
2. Message is validated against the official XSD schema
3. Digital signature is verified using BACEN's public certificate
4. Message Processor routes to the appropriate domain service
5. Domain service processes the business logic
6. R1 acknowledgement is sent back via BACEN Gateway

defmodule BacenGateway.MessageRouter do
  @doc "Routes inbound BACEN messages to domain services"

  def route(%{system: "STR"} = msg), do: TransactionService.handle(msg)
  def route(%{system: "LPI"} = msg), do: TransactionService.handle(msg)
  def route(%{system: "TED"} = msg), do: TransactionService.handle(msg)
  def route(%{system: "DOC"} = msg), do: TransactionService.handle(msg)
  def route(%{system: "SEL"} = msg), do: SecuritiesService.handle(msg)
  def route(%{system: "CTP"} = msg), do: SecuritiesService.handle(msg)
  def route(%{system: "LDL"} = msg), do: SettlementService.handle(msg)
  def route(%{system: "CAM"} = msg), do: ForexService.handle(msg)
  def route(%{system: "CIR"} = msg), do: CashService.handle(msg)
end

Outbound Messages (Institution to BACEN)

1. Domain service creates a structured message map
2. BACEN Gateway builds the XML from the official XSD template
3. Message is digitally signed with the institution's HSM key
4. XML is placed on the outbound IBM MQ queue
5. BACEN Gateway awaits R1, R2, and R3 responses
6. Status is updated in the originating domain service

Schema Validation

All messages are validated against BACEN's official XSD schemas before sending or after receiving. FluxiQ maintains an up-to-date copy of all schemas:

priv/xsd/
  ├── str/
  │   ├── STR0001.xsd
  │   ├── STR0002.xsd
  │   └── ...
  ├── ted/
  ├── doc/
  ├── sel/
  ├── ctp/
  ├── ldl/
  ├── cam/
  └── cir/

Schemas are versioned and updated when BACEN publishes new catalog releases.