Hi @Milan | KRS
Welcome to Q&A forum ~
Currently I could get the barcode image, but I could not let it show blank when your Barcode data is blank.
I try to use ""
as TrueText when the {MERGEFIELD Barcode}= ""
is True, but it also does not work.
If I have any updates or summary, I would update my reply.
-------- Update ----------
@Milan | KRS
Based on my tests, we could not use If field to hide the "Data length is not supported by current type." when barcode value is empty.
If needed, you could use Find and Replace to find the empty value for barcode, use one character to fill these blanks, use use "0" on my sample.
Then use this field formula {IF"{MergeField Barcode}"<>"0" "{Set X {MergeField Barcode}}{Set h 1927}"}{DisplayBarcode"{X}" Code 128 \t\h{h} "{Set X ""}{Set h ""}"}
, we could get a blank barcode without the error message "Data length is not supported by current type.".
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