You cannot modify the factor of UOM "%(uom)s". You cannot modify the rate of UOM "%(uom)s". You cannot modify the category of UOM "%(uom)s". If the UOM is still not used, you can delete it otherwise you can deactivate it and create a new one. Incompatible factor and rate values on UOM "%(uom)s". Rate and factor can not be both equal to zero. The %(type)s "%(code)s" for product "%(product)s" is not valid. Code of active product must be unique.