Several assembly variants can share the same bare board and look nearly identical after manufacture. A dispatch check must establish which configuration each unit actually contains. Matching only the bare-board marking can miss a different populated option, firmware image or accessory set.
Define a finished-configuration matrix
List each shippable assembly identifier and the population, firmware, test program and included accessories that define it. State which fields are common and which differ. Keep the matrix tied to approved release records, so the dispatch team does not have to infer configuration from a sales description.
If firmware is not part of the supplied assembly, say so in the matrix. If a configuration is completed later by the customer, identify the state being delivered. This avoids treating an intentionally unconfigured board as either a finished variant or an unexplained exception.
Use unit-level evidence where required
Link each unit or defined lot to the records that establish its configuration. A label generated from the planned order is not independent evidence that the planned population or programming was completed. Determine which manufacturing or test result supplies that confirmation.
For example, two variants may differ by one fitted resistor and a firmware configuration. A dispatch check based only on a software version would not establish the resistor population. Select checks that address the actual differences rather than repeating the easiest available test.
Control the transition between variants
At a changeover, reconcile the units and packaging remaining from the previous variant before introducing the next labels and accessories. Identify partially packed units and resolve their state. A shared packing bench can otherwise create a mix-up after manufacturing and test were completed correctly.
Keep exception units out of the normal dispatch sequence until their configuration and disposition are clear. If a unit is reworked after its shipping label was printed, review whether the label and associated records still describe the delivered state.
Reconcile the shipment record
Compare packed quantities by finished assembly identifier with the order and accepted production output. Include serial ranges or an explicit unit list when the project requires it. Check that outer carton labels describe the contents accurately, especially when several variants share one shipment.
Retain the final configuration matrix and dispatch record with the order. If the recipient later reports an unexpected option, these records provide a starting point for tracing the specific units involved. The objective is a demonstrable connection between the requested variant and the hardware that leaves the facility.
Move from reading to a build-ready project
Use the fabrication and assembly checklists to prepare drawings, production files and test requirements.
Open the DFM checklist