3405060 - Error "Unit of measure does not exist" when uploading purchase order via excel template

Errors when create new purchase order via excel template：

One record failed to save due to the errors:

• Error: Unit of measure XYZ does not exist (KBA: 2743428) (XYZ represents the UoM of the product)
• Warning: Unit of measure XYZ not valid for product ABC (KBA: 2674385) (ABC represents the product ID)
• Warning: Price missing; price required for expected follow-up documents invoice or ERS

SAP Business ByDesign

Unit of measure does not exist, Unit of measure not valid for product, Price missing; price required for expected follow-up documents invoice or ERS, Purchase order, Excel template , KBA , SRD-SRM-PRO , Purchase Requests and Orders , Problem