Using the ‘Sample’ block the selection can easily be divided into different segments for sending a test e-mail or for sending multiple versions of the mailing to different parts of the selection.
Drag a Sample block onto the worksheet.
Then connect the Sample block to an input (selection) block.
Double click the Sample block to open the screen below.
Based on the number of segments one or more Sample blocks will be shown. The size of a sample can both be based on a percentage as well as on an absolute number. Using the ‘Spread equally’ button the number of records will be distributed evenly over the number of segments selected. Check the ‘Show ‘Remainder’ block’ to add a “Remainder” block to the output of the sample.
Click ‘Calculate’ to perform the Sample operation.
The ‘Sample’ block shows the total number of records, for example 9.351. In the settings a number of two segments are selected with an even distribution of 50% per segment. The output however shows three blocks: namely Sample A, Sample B and Remaining. The remainder block is only displayed when this option is checked in the sample settings and shows the remaining number of records that cannot be evenly distributed in an integer value over the number of segments or when the provided distribution of records does not add up to the total number of records. When the option ‘Show ‘Remainder’ block’ is not checked the output, in this example, consists of two samples of 4.675 records.
In the example the input consists of 9.351 records, evenly distributed over 2 segments (Sample A = 50% and Sample B = 50%). The output is: Sample A = 4.675, Sample B = 4.675 and Other = 1. When the record in ‘Other’ would be assigned to either Sample A or B the mutual division between the two segments would no longer be 50% – 50%.