[Valter]

Originally Posted by Marco van Herwaarden

this is not caused by changes in vBulletin

+++

this was not enforced in older vB versions

If uppercase chars in ID was not accepted before, I would never use it. And if newer versions of vB are not changed to disallow uppercase chars in product ID, those products will update with no problems (as it worked in all vB 3.5.x and 3.6.x versions). So today this is not only my fault, but also caused by changes in vBulletin.

You should warn user when creating product that "product IDs can contain lowercase letters, underscores and numbers but no other characters". Also when importing product with problematic ID user should be warned that "product IDs can not contain spaces/uppercase or some special characters...", and that "product may not work/upgrade properly", and also "before installing this add-on please ask author to check their product ID and update if needed".

Thanks for the reply, and sorry for my bad English.

And can you try to help here, please:
https://vborg.vbsupport.ru/showthread.php?t=183070