SAP Message WR092 - Sales unit and base unit of measure do not match

Diagnosis
The retail price refers to the sales unit of measure with which thematerial is sold to consumers. The base unit of measure is the unit ofmeasure with which the material is valuated in inventory management.
If these units of measure are different, the retail price is convertedfrom the sales unit of measure to the base unit of measure forinventory valuation at retail.