How are partial dates handled in MIR?

Based on the Q&A document released and further communication received from EC, Member State Authorities are to a large extent not in favor of the use of partial dates, therefore it is recommended to use full dates in all the date fields of the MIR Report. However, in Oracle Argus Safety OOTB EC MIR Message profile, partial dates are supported with the following logic:

If Date format:-Feb-2020: Date to be Transmitted: 2020-02-01 - Transmit the First Day of the Month if the Partial Date has Month/Year

If Date format:-???-2020: Date to be Transmitted: 2020-01-01 - Transmit the First Day of the Year if the Partial Date has Year.