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ISO 20022 Messages

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ISO 20022 messages are submitted to Nexus via asynchronous API.

The ISO 20022 XML message itself will be included in full in the message body.

The Source IPSO will also define an endpoint to which Nexus should send the resulting response (ie when submitting acmt.023, the Source IPSO must also define the acmt024Endpoint to which Nexus should send the acmt.024 response).

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Submit ISO 20022 acmt.023 message (Proxy or Account Resolution Request)

post

This endpoint accepts an ISO 20022 acmt.023 message in XML format. The message must be prepared according to the Nexus Message Usage Guidelines.

Query parameters
acmt024Endpointstring · uriRequired

An API URL exposed by the Source IPSO where the acmt.024 response (which contains underlying account details) should be sent.

Body
stringOptionalExample: [Full XML of the acmt.023 request]
Responses
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200

Successful response

application/xml
ResponsestringExample: [Full XML of the acmt.024 response]
post
/iso20022/acmt023
200

Successful response

hashtag
Submit ISO 20022 pacs.008 message (FI to FI Customer Credit Transfer - the core Nexus payment instruction)

post

This endpoint accepts an ISO 20022 pacs.008 message in XML format. The message must be prepared according to the Nexus Message Usage Guidelines.

Query parameters
pacs002Endpointstring · uriRequired

An API endpoint exposed by the Source IPSO where the pacs.002 response (Payment Status Report) should be sent.

Body
stringOptionalExample: [Full XML of the pacs.008 request]
Responses
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200

Successful response

application/xml
ResponsestringExample: [Full XML of the pacs.002 response]
post
/iso20022/pacs008
200

Successful response

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