Errors when generating labels

Errors when generating labels



Common errors

  • EAN13 must be 12 or 13 digits
  • UPC-E must have number system 0 or 1
  • Incorrect EAN-8 check digit provided
  • ISBN-13 must be 15 or 17 characters including dashes. ISBN-10 must be 11 or 13 characters including dashes
  • AIs must start with '('

Other errors

  • Signals timeout or invalid JSONTo ensure performance, we have set a 30-second limit for generating labels. If you attempt to generate too many labels at once, causing the process to exceed 30 seconds, the server will forcibly terminate the operation. This timeout usually occurs due to large image sizes or an excessive number of labels being generated simultaneously. Please reduce the number of labels or use smaller image sizes.
  • Unexpected end of JSON inputThe server is experiencing issues. Please try again later.

Solution

These errors occur because the barcode values need to follow the barcode format requirements. We recommend using the  Online Barcode Generator  to check the accuracy of your barcode values.
The barcodes we create contain random numbers and are not EAN-13 codes and can only be used in CODE_128 format. Hence, when you use the barcode values from our assigned feature, please choose CODE-128 as your barcode format.