p$TDV:SMPAPI:PG02Udf

Set empty texts (’’, not EMPTY) and numeric parameters with the value 0 from the specified parameter group to the UNDEF state. All other parameters or the parameter group remain unchanged.

This function can, for example, be employed in combination with the sales information system SalesManager. With regard to reading and writing in this data base an ePOS parameter in UNDEF state implies an empty data base field (’NULL’) while the parameter will be ignored in the EMPTY state.

Please note:

The parameter group may not contain any indexed parameters.	PGName	String	Name of the parameter group, if the PG is indexed the index has to be stated.
Result:	-
Example:	p$TDV:SMPAPI:PG02Udf( 'Contact' )