Barcode placeholders
Generate barcodes from data
Merge the report to replace each named barcode placeholder with the corresponding serial value from the JSON data.
Understand the current template
Explore its merge fields, repeating blocks, and nested structure in an interactive template map.
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What this demonstrates
Separate barcode design from barcode value
The template defines each barcode's symbology, dimensions, alignment, and position. The data source supplies only the content encoded by that placeholder.
Because barcodes are document objects, they participate in the same repeating blocks as product names, prices, and other merge fields.
API used
MailMerge.MergeJsonData
How it works
The controller merges the JSON into a template containing named barcode objects. Matching data values update those objects while their visual settings remain unchanged.
