Errors do not appear where they are found. In the TSS workflow, an error typed at entry surfaces days later at submission or after rejection. Debugging starts with mapping the gap.
The Workflow Stages
A document arrives — commercial invoice, packing list, transport document. Data is typed into the entry summary declaration, then again into the simplified frontier declaration, then again into the supplementary declaration by the tenth of the following month. Each retype is a fresh chance for a description to drift, a commodity code to be reused without checking, or a weight to be transcribed wrong.
Submission is where the workflow tests itself. Rejection is where the error surfaces. The TSS declaration workflow guide traces each stage.
The Fix Is Upstream
Fixing errors at submission is treating symptoms. The upstream fix is entering the fact once — product description, commodity code, party details, weights — and pulling it into every downstream declaration. The workflow moves from repeated entry to single-source data, and the classes of error tied to transcription disappear.
See workflow-integrated validation for TSS. Watch a demo with iCustoms.
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