Amazon settlements are generally paid every 1-2 weeks, but will often cross a month boundary.
For example, one settlement may start on June 25th and run through to July 9th.
If we create one invoice for this settlement, it will either need to be created in June, or in July. This means the entire period of sales and expenses will be recorded in a single month, when in fact, it relates to two months.
A2X will split the settlement data according to which month the sales or fee actually occurred in. This will ensure that your financial accounts properly record the transactions in the month that they've occurred in.
It will also make months more comparable to previous months and years for your reporting.