Use Case "Doing Business in Another Member State" (DBA UC2)
The Use Case "Doing Business in Another Member State" of the Doing Business Abroad Pilot (DBA UC2) uses the Subscription and Notification Pattern.
This use case focusses at assessing the consequence for active eServices in case of a business event, e.g. company goes bankrupt, company stops it’s activities, company merges, etc. The data consumer may subscribe to notifications on selected business events. In case such an event occurs, the data provider notifies the data consumer. The data consumer needs to assess the relevance of the notification. It can then for example request the updated data from the data provider or decide it doesn’t need any additional data. Furthermore, the data consumer may intervene in an active eService (e.g. stop periodical grants or impose a tax obligation). The data consumer may also use the notifications as input to a general fraud prevention and protection procedure.
Message ‘Subscription request’
| Element | Description | M/O | Example value |
| Legal Person Identifier | Identification of the company following the eIDAS regulation: country code / country code / company identifier | O | RO/AT/90000471 |
| Requested action | Indicates whether a subscription or the cancellation of a subscription is requested by the sender: ‘subscribe’ or ‘unsubscribe’ | M | subscribe |
| Participant ID | The OOP TS participant identifier that identifies the organisation that is the subscriber (and thus will receive business event notifications) | O | SE000000013 |
| Business event type | The business event to subscribe to. If omitted, subscribe to all business events | O | |
| Legal person identifier | Identification of the company following the standard for EUID, <country code><business register code>.<company identifier>_<optional check character>. EUID is used for all companies registered in a European business register. | M | |
| Subscription period | The period for which the subscription is valid. If omitted subscription is valid until a unsubcribe request. | O | |
| TBD: event catalogue | The domain of events the subscription is | ||
| TBD: subscription period | The date of beginning and ending (optional) of the subscription |
Message ‘Subscription confirmation’
| Element | Description | Example value |
| Legal Person Identifier | ||
| Subscription timestamp | ||
| Subscription result | Subscription successful ; subscription cancellation successful | |
| Subscription request reference | ||
| Subscription reference | Local identifier of the subscription. Not needed but can be useful in exception flows |
Message ‘Subscription error’
| Element | Description | Example value |
| Legal Person Identifier | ||
| Request type | Subscribe / unsubscribe | |
| Error timestamp | ||
| Subscriber identification | ||
| Error message | Subscribe: company unknown, (participant not authorized)
Unsubscribe: company unknown, company not active, subscription unknown, subscription not active >move this text to subpage DBA |
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| Subscription request reference |