BUYER GUIDE
Custom Bag SKU and Color Evidence Coverage Matrix Guide
One bag program may contain several sizes, colors, materials, trims and factories. A coverage matrix makes visible which evidence supports each version, where grouping has a documented basis and where new testing or declarations may be required.
Use the matrix to expose gaps—not to make evidence look broader
Coverage depends on the exact requirement, sample identity, material source and buyer risk decision. Similar appearance alone is not a technical basis for combining SKUs or colors. The matrix should record who approved each grouping and what would invalidate it.
Build the complete variant register
List every sellable or distributed SKU with size, colorway, exterior, lining, coating, print, hardware, zipper, decoration, packaging and intended market. Assign stable version names that match the specification, artwork and purchase order.
Separate a marketing color name from the actual material or supplier color reference. Record shared components once, but keep the link from each SKU visible.
Define the evidence questions
Create columns for each buyer requirement or evidence type, such as material identity, composition declaration, color approval, relevant test report, certificate scope, functional sample, packaging file and open deviation.
Do not use one generic “compliant” column. Different documents answer different questions, and a valid certificate may not cover the same sample or requirement as a laboratory report.
Document the grouping basis
Where one report or declaration is proposed to cover several variants, record the shared supplier, composition, construction, formulation or process and the representative sample selected. Identify differences that remain outside the grouping.
Name the person who reviewed and accepted the rationale. If the basis is uncertain, mark the rows pending instead of copying the same document number across every SKU.
Resolve gaps before release
Mark each cell covered, pending, not applicable, accepted by reference or requiring new evidence. Assign an owner and target date for every pending item. Link the exact file number and revision rather than storing untraceable screenshots.
Use the matrix during sample approval, production release and pre-shipment review. A late gap may require a documented buyer decision, a new sample, updated supplier evidence or a revised claim.
Maintain the matrix through changes and reorders
Update rows when a supplier, material, colorant, coating, print, hardware, factory, requirement or document status changes. Preserve prior revisions with completed orders and prevent obsolete evidence from carrying forward silently.
For a reorder, compare the current bill of materials and color list with the approved matrix before confirming that old evidence remains relevant.
BUYER FAQ
Questions to settle when mapping evidence across variants.
Can one test report cover several SKUs?
It may when the buyer accepts a documented technical basis and the report scope matches the shared material or construction. The uncovered differences should remain visible.
Should every color have its own test?
There is no universal answer. Dyes, pigments, prints and coatings can change risk, so the buyer should approve the grouping or sampling rationale for the applicable requirement.
What belongs in the matrix: file links or conclusions?
Include both a clear status and the exact document number, revision or controlled file link. A conclusion without traceable evidence is difficult to audit or reuse.
Who owns the matrix?
Assign one controlled owner, while technical, quality, sourcing and supplier contacts provide and approve the entries relevant to their responsibilities.
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