It is the number of lines that have been corrected which must be stated in the X and Z reports.
Example: reduction in quantity by 4 due to miskeying.
Five coffees at NOK 30 (NOK 150) have been registered on one line, but this should be one line with one coffee at NOK 30. This is corrected using -4 coffees at NOK 30 (-NOK 120). The line correction is shown in the X and Z report: number of miskeyings: 1, amount NOK 120
If one coffee is registered on each line (4 too many), the correction must also be made for each line. The line correction will then be shown in the X and Z report: number of miskeyings: 4, amount NOK 120
If corrections are made after the sale has been concluded, this must be shown as a return and not as a line correction. When four coffees are entered as a negative sale, this must be stated in the X and Z reports as returns quantity -1, amount NOK -120; see Section 2-8-2 first paragraph (p) of the Cash Register System Regulation. In such cases, a return receipt must be printed out and it is the number of return receipts which must be added together in the X and Y reports.