What is a Peppol Message Level Response (MLR)?
Short answer
A Peppol Message Level Response (MLR) is a technical message by which the recipient’s system reports the result of processing an electronic message—for example, that it was received or could not be processed technically. MLR concerns the technical message layer, not the commercial content of the invoice, and does not mean that the invoice was approved.
Not commercial content
MLR informs about the processing of the message, not about the acceptance of the invoice.
Does not apply to payment
MLR does not mean that the invoice has been paid or that the content is correct.
Development of the standard
OpenPeppol sees Message Level Status as an evolution of the original MLR.
Part of the audit trail
If the MLR is created, it belongs to the invoice lifecycle documentation.
Conclusion
MLR confirms technical message processing in Peppol; it is neither a commercial decision on the invoice nor a substitute for Invoice Response.
Not legal advice.