# {{page-title}} (Transaction ERESULT-10)


## General
A prescriber's software supporting eResult must register its support to eResult service.

## Input
**For Security reason, URL (Base and Query parameter), Authentification mechanism are supplied privately documentation supplied by Agence eSanté to each integrator**

Registering a prescriber's software support is done with CNS Code.

The body of this request has the following structure:
```json
{
   "resourceType":"Parameters",
   "parameter":[
      {
         "name":"identifier",
         "valueIdentifier":{
            "system":"urn:oid:1.3.182.4.6",
            "value":"<CNS code>"
         }
      }
   ]
}
```

Note:
- A support may be resgister twice or more. It has no impact but won't return error.


## Output
### Success
In case of success, the API will returned:
- A HTTP Code 204

with an empty body (Which is why HTTP code is 204 and not 200)

### Error
Main errors related to this service are:

| HTTP Code | eResult error code | Description |
| ------------ | ----------- | ------------- |
| 422 | PRO_001 | CNS code supplied is invalid |
| 404 | FHIR_000 | No body is supplied with the HTTP request |