Undetermined year in commemorative euro coins

Hi
Why now, some commemorative euro coins appear as an Undetermined year when all (or almost all) have the year of minting?
Regards

Examples?

Perhaps something to do with this. Recently implemented.

https://en.numista.com/forum/topic44653.html

Verweis : "harryg"​Perhaps something to do with this. Recently implemented.
​
​https://en.numista.com/forum/topic44653.html

​That's exactly what I was thinking but that would mean that coins with a ? "dateline" would have automatically been converted to "undetermined" which I know didn't happen on the few coins I have that are ?.

Verweis : "rsirian1"​

Verweis : "harryg"​Perhaps something to do with this. Recently implemented.
​​
​​https://en.numista.com/forum/topic44653.html

​​That's exactly what I was thinking but that would mean that coins with a ? "dateline" would have automatically been converted to "undetermined" which I know didn't happen on the few coins I have that are ?.

​Then again, you may be right. If a coin has more than 1 "yearline" then clicking the "Add to my collection" button defaults to "Undetermined" but this affects every coin in the catalog not just commemorative euro coins.

Verweis : "rsirian1"​

Verweis : "rsirian1"​
​

Verweis : "harryg"​

​Maybe I should rephrase my comment. Attempting to implement and working the bugs out? After all, the big Numista gods are based in Europe and I suspect they are using Euros as a trial run.

We may never know as the OP seems to have lost interest.

Verweis : "rsirian1"​We may never know as the OP seems to have lost interest.

​Yes, happens far too often.

If a modern coin is in such poor state that you can not read the date, add a commnet in the private comment field. Or simply melt it or throw it way.

Previously I could se bythe double tick that a spesific type was complete, now I need to add a piece of junk to my collection to have the type complete.

Just tick 'I don't wish to get it' it's really not that hard.

I would love to be enlighted as to the value add of such a box, Undetermined.

Agree, for coins from pre 1900 or even pre-1800 it could make sense, but what would be the value of such a box for a coin like
https://en.numista.com/catalogue/pieces11459.html - half Ounce Gold Kruger coin, or
https://en.numista.com/catalogue/pieces171527.html - 2007, 2 1/2 Cent coin that was ONLY issued in proof. It is cristal clear, this coin can ONLY be a 2007, so ticking "Undetermined" tells me you are not serious about collecting.

If you have any of these mentioned above, like so many others, in a state of "Undetermined", I would seriously have to ask about the authentisity of the coin, and if it was genuine, I would melt it and get a proper real one. Or if it is wothwhile to keep a coin like these
https://en.numista.com/catalogue/pieces2888.html - South Africa 5 cents 2007 of which there were more than 650 MILLION made, or
https://en.numista.com/catalogue/pieces9974.html - South Africa 5 Rand 2007 pf which there were more than 11 MILLION made.

Before you go to all the trouble of adding it to your collection, throw it in the bin and swap them from any one of the serious collectors on the site.

This request is only adding work for the admin and moderators teams, without value add.

So I suggest, STOP this now, before we make too much work without a real purpose, this is none vale add