I've been running into the same issue. So far I've found that if I generate QR codes it works nearly every time. However, I am running into the same issue with creating new barcodes.
melissa jaffray and Andrew Smith:
Thank you for your posts.
"3 or 9" is not a supported barcode. For a listing of barcodes that are accepted, see Knowledge Base Article #12064 at:
@TSGal thank you for your response but I think I might need to clarify my question. I am looking for a font I can use that will allow me to generate barcodes (like on the tops of invoices) that filemaker will be able to read. Right now I haven't been able to find one that it will actually recognize as a barcode when it is printed and you try to scan it. 3 of 9 is supposed to be a font that creates Code 39 barcodes, but it must have some issues. Thanks for any ideas!
Some bar codes require a "check digit" before they are a valid bar code. This digit is used to confirm that the data was correctly scanned. When setting up your bar code, You'll need to compute and add the needed check digit in order for the resulting bar code to be scannable. There are plug ins that can take your data and output the needed code or, if you can research the needed calculation for the check digit, you can set up your own calculation to produce the needed code.
@PhilModJunk thanks that was brilliant! I just tested it and for anyone else thats trying to get this to work here is how you do it: Download the free 3 of 9 font and install it on your system. Then when you go to make a code out of it in filemaker, you need to add an asterisk to the front and back of the barcode. Once you do that it works just fine.