Setting the Comparison Period for Multiple Export 
Use
If you run the export program several times for the same payroll period, then this is known as multiple export. Multiple export can be split into two types:
To identify the changes in the dataset for multiple export, the system must know the payroll period. When you define the payroll period, you should note the following:
The selection screen for the
export program contains a Repeat run parameter in the Export options group box.The last data export for this payroll period did not take place for the export program.
The change validation function uses the last but one data export from the selected payroll period to compare the data. An export must have taken place previously, otherwise the comparison will be made with the most recent comparison period.
If another export run takes place during the selected payroll period, the export program assumes that the third-party system has received the data from the last export.
The change validation function uses the last data export from the selected payroll period to compare the data. An export must have taken place previously, otherwise the most recent period will be used for the comparison.
See also:
Setting the Comparison Period for Retroactive Accounting