Sam4s SPS-500 Series Program Reference Manual page 149

TRAY SUBTOTAL REQUIRED!
This prompt appears while in a TRAY SUBTOTAL transaction. The operator must first press the TRAY
SUBTOTAL key before pressing any tender keys.
VALIDATION REQUIRED!
This operation requires validation to complete the compulsory settings.
WASTE REQUIRED!
The operator is in the middle of a waste operation, and must depress the WASTE key in order to complete
the operation.
WRONG EMPLOYEE
The employee attempting to open this guest check is not the original person who started the guest check.
Also appears when attempting to sign on a new employee without first signing the current employee off,
if overlap employee is not programmed.
ZERO AMOUNT
The register has been programmed to not allow negative sales, and to consider a zero amount as a
negative sale.
SPS-500 Program Manual v1.31
P Mode Programming  149