Inspect the assembly handoff.

Compare population intent with placement evidence. Find the mismatch, then trace it back to the export.

Files and column mapping CSV files stay in this tab

Add both files, read their columns, then confirm each mapping. Suggestions are not format detection.

BOM What should be fitted

Or paste BOM CSV

CPL Where it will be placed

Or paste placement CSV

UTF-8 CSV. 2 MB and 5,000 rows per file. 20,000 combined references. All limits

Sample BOM Sample CPL

BOM columns

Designator Quantity Populate

CPL columns

Designator X coordinate Y coordinate Rotation Layer

Coordinate unitsCheck profile

Factory-neutral checks use your mapping. They do not establish compatibility with a manufacturer's uploader.

Population flags and grouped references

DNP, DNI, no, false, 0, unpopulated, not fitted mean excluded. yes, true, 1, fit, populated and blank mean populated. A Boolean DNP column often means the opposite: convert it to a Populate column first.

References accept letters plus digits, lists and ascending ranges such as R1-R3. Quote CSV cells containing commas. Population examples

Ready for your CSV files. Nothing has been checked.

Issue review

Read columns, confirm mappings and choose units to begin.

Every mismatch needs a source.

Your issues will appear here with their original CSV lines. Select one to compare both files and see what to check next.

The synthetic example includes a duplicate R3, a missing C2 and an excluded J1.

Evidence, before edits.

A discrepancy report does not repair a design. Use the source values to find the cause, correct your CAD export, and check the new pair.

Why a KiCad part can disappear from the CPL

Consistency is one part of the handoff. No Gerber, polarity, footprint, pin-1, origin, mirroring or stock checks. A clean report still needs CAD and factory preview review. Exports contain all issues, including those hidden by filters.