Search MLR history

---

Retrieve all MLR, Message Level Response, records previously sent for a company's incoming invoices.

Endpoint

Property	Value
URL	GET /peppol/search-mlr?companyId={{companyId}}
Method	GET
Auth	R-Auth: <company-jwt>

Example Request

curl --location '{{baseUrl}}/peppol/search-mlr?companyId={{companyId}}' \
--header 'R-Auth: {{companyJwt}}'

Query parameters

Parameter	Type	Required	Description
companyId	UUID	Yes	Company UUID

Response

[
  {
    "id": "230644e0-9c27-4a00-87ca-ab1f6a14370c",
    "companyId": "17f81c76-fd84-45e0-bd39-76d5c04c515f",
    "documentId": "5429a127-578f-426c-afe1-e551d05ed3a9",
    "responseType": "REJECTION",
    "receivedTime": "2026-06-15T10:08:18",
    "counterpartParticipantId": "iso6523-actorid-upis::0002:271688503",
    "invoiceId": "02d03693-f4cd-4460-883c-adfdad130603",
    "responseLines": [
      {
        "id": "62b0a495-7b7b-46b5-8001-4f94471d981e",
        "errorField": "string",
        "responseCode": "REJECTION",
        "description": "Invoice amount does not match purchase order",
        "statusReasonCode": "BUSINESS_RULE_VIOLATION_FATAL"
      }
    ],
    "note": null
  }
]

Response fields

Field	Description
id	MLR record UUID
companyId	Company UUID
documentId	Related document UUID
responseType	ACCEPTANCE, ACKNOWLEDGING, or REJECTION
receivedTime	Timestamp when the MLR response was created or received
counterpartParticipantId	Peppol participant identifier of the counterpart
invoiceId	Corresponds to id in the Search documents response
responseLines	Empty for ACCEPTANCE or ACKNOWLEDGING; contains error details for REJECTION
responseLines[].id	Response line UUID
responseLines[].errorField	Invoice field related to the response line
responseLines[].responseCode	Response code, usually REJECTION for error lines
responseLines[].description	Human-readable error description
responseLines[].statusReasonCode	Reason code, for example BUSINESS_RULE_VIOLATION_FATAL
note	Optional free-text note