Field help (GET1AEFROM) 

Use this field to enter the minimum value of a deduction band.
For example, if an Attachment of Earnings Type (AET) has two bands where if the employee’s net monthly earnings are less than £1000.00 you deduct 3% a month, but if they are between £1000.00 and £9999.99 you deduct 5% a month. In this case, you would enter ‘0.01’ in the AE from field on row 1 and ‘1000.00’ on row 2.