EMVO released two Letter of Announcement titled "Verifying one pack per batch". The recommendations are adressed towards wholesalers connected to the national systems.
Both documents can be downloaded here:
EMVO_LoA_0100_20191004_Clarification_verifying one pack per batch.pdf (174.65 kB)
EMVO_LoA_0097_20190926_Verifying one pack per batch.pdf (171.12 kB)