Notification messages which relate to historic PIP modifications

Dear EMA IRIS support team,
We have received a number of Notification messages  from <EMA-IRIS@id.ema.europa.eu>.
The messages are in acknowledgement of PIP modification submissions, however they  relate to previously approved PIP modifications and not recently submitted information.
It would be helpful if you can explain why we are receiving such messages-  does it relate to testing of EMA's communication system via IRIS?

Please advise if these messages are to be treated as 'FYI' and require no further action from the sponsor.
With thanks,
Johanna

Please ignore the submission receipt email for your already approved PIP modifications as it has been sent in error by the IRIS system during the migration of the old paediatric cases from the previous system.

We apologise for any confusion.

Thank you so much for this clarification- we will simply file the communications based on the  understanding  that no follow up action needs to be taken on our part.
Thanks again for your prompt response. Kind regards, Johanna

Please see Submission receipt notifications sent in error by IRIS for old, closed Paediatric procedures · IRIS (europa.eu)