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The Compose page lets you transmit a new communication — or a reply — to the Banco Central do Brasil (BCB). Behind the scenes, BC Correios sends the message through the BCB TransmitirCorreio operation, so you never need to handle the underlying SOAP/XML protocol.

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Accessing Compose

Open Compose from the Inbox by clicking the New message button, or from Reply on a mail detail page.
Compose requires the mails:post permission. With read-only access, you see the form with a read-only banner and a disabled Send button.

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Message fields

FieldRequiredDescription
SubjectYesThe subject line of the communication.
DestinationNoThe destination unit at the BCB. Leave blank to use the tenant default. Common units are suggested as you type (for example DEINF, SECRE, GABIN, DEPIN, DESIG, DEORF), but the field accepts free text.
ContentYesThe message body (up to 10,000 characters). A live character counter is shown.
KeywordsNoComma-separated tags to classify the message. Maximum of 10 keywords, 100 characters each.

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Replying to a message

When you start Compose from a mail’s Reply action, the subject is pre-filled with Re: <original subject> and the page shows which message you are replying to. The reply is linked to the original mail so the conversation stays traceable.

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Sending

  1. Fill in at least the Subject and Content.
  2. Optionally set a Destination and Keywords.
  3. Click Send message.
On success, BC Correios confirms the transmission and returns you to the Inbox. The sent communication then appears in the Sent folder.
If you navigate away with unsaved changes, BC Correios asks you to confirm before discarding the draft.
Every transmission is recorded in the Audit trail as a Mail sent event for compliance evidence.