[Koha] Barcode Troubles

[abrazier at buttepubliclibrary.info]

Hello all,

Newbie here. Decided to reach out to the community regarding something 
happening here at our library in Butte, Montana.

We've been using version 18.11 with little to no issue for a month or 
more but something recently happened. While editing items that are being 
added to our collection, when we click in the field (p - Piece 
designation (barcode)) which we have always had set to (autoBarcode: 
generated in the form 1, 2, 3) we are no longer getting the barcode we 
expect to see.

We suspect it is now going back to barcodes that once belonged to items 
that are now deleted (because, that earlier barcode is now available). 
This doesn't work for us and we are trying to determine how to tell Koha 
that we'd like to start at barcode# X. So that we can move forward with 
X+1, X+2, etc.

Any ideas would be helpful and appreciated.

Thank-you,
Allen Brazier