Meaning of EF000074 Number of units and EF009573 Number of modules (module system)

Hello all, i'd like to ensure my understanding of the mentioned features is correct or receive a proper definition - as example, i looked at EC000125 Socket outlet EF000074 Number of units: tells the number of socket outlets provided by the product - so in combination with EF000010 model gives the information - this product has 3 outlets acc. Italian P10 or similar. So, this should be maintained for every product in EC000125 as each product would have 1 or multiple units EF009573 Number of modules (module system): give the width of the product in modular spaces of 22.2 mm - which is a system mainly populated in Italy and adjacent countries. So for typical german outlets as example, this one should always be empty (Dash in BMEcat). It can't be "0" as that would mean it's 0*22,2 mm wide > which makes "0 mm" I assume showing the actual width divided by 22,2 mm is not recommended (eg. showing a 55 mm wide outlet would as "2.477 units). Any feedback welcome - most important to have the correct understanding in the end. Thanks

thanks for confirming my understanding - so we can tell suppliers to correct their data