Thanks for joining the Community, Miro1.
Since your purchasing units are updating to invalid information when you change the purchasing unit of measure, I'd recommend creating a new U/M for the item that's purchased differently.
Here's how:
- In your top menu bar, go to Lists, then U/M Set List.
- From the U/M Set drop-down list, click New.
- Continue with the steps displayed in your Unit of Measure wizard. If you need assistance at any point, select Help.
I've also included a detailed resource about working with units of measure which may come in handy moving forward: Use single & multiple units of measure for items
Please feel welcome to send a reply if there's any questions. Have an awesome Wednesday!
