Nicolas,
I thought this was working for me but it is not... here is my situation. I have a radio button custom field with values and titles. My custom field values are a, b, c and I have so many different values that I go into double characters... so I am into values of x, y, z, aa, ab, ac etc.
What I just discovered is that when I select the filter value for "a", I get a product with a custom field value of "a" which is good, but I also get a product with a value of "ag"... which is incorrect. Both products are being returned when I filter on what should return just the a product with the value of "a". I confirmed that the additional product (the one that should not be returned) is correctly set with a value of "ag". I also exported the product, and confirmed it that way.
So, it appears that the filter does not distinguish between products with values of "a" and "ag". If I filter on values of "ag", then the filter works properly and returns only products with "ag" values. Do I need to change all my values to be the same length? For example, if should I change my custom field values from a, b, c, to a1, b1, c1, etc. and update my inventory accordingly?
Please advise me on how to proceed.
Dennis