Please note that the Backer Offset feature found under Campaign Transactions is available to portal administrators only.
This feature allows administrator to control backer offset displayed on Campaign page. Backer offset is then added to the existing backer count.
For example if campaign currently had 10 backers but administrator wanted to say there were actually 15 backers since those other backers were recorded elsewhere, then this flag could be used to indicated that on the campaign by putting 5 as the backer offset, resulting in 15 total backers instead of 10.