International bar code is undersized
Looking at the USPS requirements (can be found here - https://ribbs.usps.gov/intcustomsforms/documents/tech_guides/GuidelinesforPrivatelyPrintedCustomsDeclarationForms.pdf) the bar code that is printed on International labels is under sized. This makes it difficult for some scanners to pick up the bar code depending on what printer you are using. I'm surprised that ShipStation is adhering to USPS requirements.
This is a known issue and our Developers are working on it.
We will let you know once we have any updates on this.
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