How to
How to update an existing merch portfolio
A prose guide — which signals force a SKU rewrite, which signals force keeping it, and how a product is retired without burning the learning it left behind — so a living portfolio in Mexico City, Monterrey or Guadalajara stays relevant for two to five years without turning into an inflated catalogue.
Why most merch portfolios fill up with zombie pieces
The prose of a portfolio update does not fail because of a lack of new ideas; it fails because of the absence of an explicit criterion for retiring old pieces. Each year the brand team launches three or five new SKUs because the trend supplier pushed them, because the main customer changed its image, or because the last fair left a good impression. But no one has the reverse conversation — which piece from three years ago no longer earns its keep, which packaging can be simplified, which material is surplus — because retiring implies admitting that the previous decision was wrong, and admitting it costs. The result is a portfolio that grows with each cycle: Twenty at the end of year one, thirty-five at the end of year three, fifty at the end of year five, with pieces that no one has ordered in two fiscal years and that occupy space in the warehouse.
In Mexico the problem intersects with three specific frictions. The first is physical inventory: unlike a digital catalogue, every obsolete SKU of a merch portfolio occupies square metres in a warehouse in Tlalnepantla or Apodaca and costs money until it is liquidated. The second is the supplier relationship: a SKU the workshop knows how to make well is defended by inertia, even though the customer no longer orders it; retiring it means renegotiating the catalogue with the supplier or replacing it with a SKU that will require a new learning curve. The third is institutional memory: if the team that chose the original SKU is no longer there, retiring without context repeats the error in the opposite direction.
This guide is for the brand or operations team that has to decide next year's portfolio and that prefers to do it with an explicit conversation about what stays, what goes and what gets rewritten. It covers the prose of the seven steps to produce that conversation in auditable format, and the antipatterns that turn the decision into a choreography of egos. It does not discuss the marketing plan or the customer narrative; only the prose of the file that holds the decision.
The intended scale is a portfolio of fifteen to sixty active SKUs per brand, with three to five years of operation and at least three completed review cycles. The structure holds for smaller and larger portfolios; what changes is the amount of evidence required before retiring.
The update process in 7 steps
- Portfolio audit by signal. A spreadsheet with each SKU, launch date, quantity sold in the last three cycles, quantity in warehouse, gross margin per unit, and the obsolescence signal (last sale, last complaint, last customer who ordered it). The audit is the input for the conversation; without it the decision is a hunch.
- Decision typology per SKU. A closed classification for each SKU: kept as-is, kept with minor adjustment (colour, packaging, copy), rewritten from the substrate, retired and replaced, retired without replacement. The typology is the audit's output and the basis of the decision.
- Retire decision with liquidation plan. For each retired SKU, one page with the inventory strategy: sale to internal team at discount, donation to a documented cause, destruction with minutes, sale to outlet at minimum price, or trade-in with supplier as credit on the next PO. The plan's prose carries the dated and signed decision.
- Rewrite decision with inherited brief. For each SKU that gets rewritten, a brief that includes the learning from the previous SKU — what the customer liked, what they complained about, what was hard to manufacture, what margin it produced. The brief is delivered to the designer or supplier as input, not as a target of criticism.
- Add decision with justification. For each new SKU, a written justification: which need it covers that the current portfolio does not, which customer asked for it, which market problem it solves, which annual volume is expected. Without justification, the new SKU does not enter the portfolio.
- Operational launch with inventory transition. A schedule with the entry date of the new SKU, the exit date of the old SKU, and the transition rule for inventory in transit or in warehouse of the old SKU. The rule prevents the customer from ordering a SKU that no longer exists and receiving the new one without context.
- Decision archive and institutional memory. A minutes record signed by the portfolio owner with the complete decision: what was kept, what was adjusted, what was rewritten, what was retired and how. The minutes are archived and become input for the next audit.
Prose antipatterns that turn the portfolio into a museum
The first antipattern is retiring by intuition. "Nobody orders it anymore" without data from the last three cycles is a hunch, not a decision. The prose demands the per-cycle sales figure and the date of the last order before retiring.
The second antipattern is rewriting without learning. If the previous SKU failed on low margin or recurring complaints, and the new one is launched with the same structure, the decision is badly written. The inherited brief's prose carries over the learning from the previous SKU, it does not hide it.
The third antipattern is retiring without an inventory plan. A retired SKU that stays in the warehouse costs money every month until someone decides what to do with it. The liquidation plan's prose is signed together with the retire decision, not after.
The fourth antipattern is adding without justification. If the new SKU enters because of fashion, because of supplier pressure or because "there must always be something new", the portfolio inflates. The process's prose demands a written justification before approving the new SKU.
The fifth antipattern is the transition without rule. If the old SKU keeps being sold while the new one is launched, the customer buys the old one by inertia and the new one fails for lack of adoption. The transition's prose carries the cut-off date and the in-transit inventory rule.
The sixth antipattern is the decision without signature. A portfolio update without a signed minutes record is a proposal, not a decision. The process's prose demands the signature of the portfolio owner and the inventory lead before closing the cycle.
The seventh antipattern is the archived minutes that no one re-reads. If last cycle's minutes are not consulted for this year's audit, the decision repeats without memory. The procedure's prose assigns someone to re-read the previous minutes at the start of the new audit.
Tools, templates and references
Portfolio audit spreadsheet. A spreadsheet with each active SKU, its launch date, sales per cycle, current inventory, gross margin and obsolescence signal. The spreadsheet is updated every three months and frozen at the start of the update decision.
Decision typology matrix. A table with each SKU, its classification (kept, adjusted, rewritten, retired, added) and the justification for the classification. The matrix is the main input for the decision meeting.
Inherited brief template. One page per rewritten SKU with the learning from the previous SKU: what was liked, what was complained about, what was hard, what margin it produced. The brief is signed by the portfolio owner before going to the supplier.
New SKU justification template. One page with the need the SKU covers, the client who asked for it, the market problem, the expected annual volume and the success metric. The justification is signed before approving the portfolio entry.
Liquidation plan per retired SKU. One page with the inventory strategy (internal sale, donation, destruction, outlet, trade-in), responsible party, deadline and final minutes record. The plan is signed together with the retire decision.
Transition schedule. A spreadsheet with the entry date of the new SKU, the exit date of the old one, the in-transit inventory rule and the responsible party for customer communication. The schedule lives in the brand and operations team's calendar.
Portfolio decision minutes. A signed PDF with the outcome of the decision: list of SKUs kept, adjusted, rewritten, retired and added, with justification per line. The minutes are archived and become input for the next audit.
Useful references. ISO 9001 for portfolio management under a documented system; LGPGIR and its regulation for donation of obsolete inventory; SAT for fiscal destruction of merchandise with minutes; NOM-050-SCFI-2010 for product labelling; RFC 5646 for locales in multilingual copy.
Suggested schedule. Audit from November 1 to 15; typology from November 16 to 30; retire, rewrite and add decisions from December 1 to 15; operational launch between January and February of the following year; minutes archive at the close of the first quarter. An annual cycle sustained by three months of disciplined work.