Handling Discontinued and Out-of-Stock Parts in Your Diagram

Parts catalogues are never finished

A parts diagram is not something you set once and forget forever.

Parts go out of stock. Suppliers change. OEM items get discontinued. Aftermarket alternatives appear. A product variant becomes unavailable. A replacement kit takes over from an old individual part.

That is normal catalogue work.

The important thing is to decide how the customer should experience those changes on the diagram.

Out of stock is different from discontinued

Do not treat every unavailable part the same way.

Out of stock usually means the product is expected to return. Discontinued means the product is no longer available, or no longer something you intend to sell.

The customer experience should reflect that difference.

A temporary stock issue may only need clear availability information. A discontinued item may need a replacement, an alternative, or removal from the Konfig.

Temporary stock issues

If a part is temporarily out of stock, it can often stay in the diagram.

The diagram position is still valid. The customer still needs to know what the part is. Removing the item entirely may create confusion if the customer can see it on the product but not in the list.

If you choose to show stock status, the customer can see that the part is unavailable.

How ordering works from there depends on your Shopify product and theme settings.

Permanent discontinuation needs a decision

When a part is discontinued, you have choices.

You can keep the original item visible but unavailable for reference. You can replace it with a new part. You can add an alternative to the same diagram position. Or you can remove the item from the Konfig if it no longer helps the customer.

The right choice depends on whether customers still need to identify the old part.

If they do, keeping the position visible can reduce confusion.

Add alternatives where they are valid

If the OEM part is discontinued and an aftermarket or replacement part is valid, add it to the same hotspot position.

This keeps the visual relationship clear. The customer clicks the original part position and sees the available option.

Label the replacement carefully.

Use wording such as “replacement for”, “aftermarket alternative”, or “superseded by” only when accurate.

Be careful with superseded parts

Superseded parts need extra care.

A new part may replace an old part fully, or it may only apply to certain models, serial ranges, or production versions. Do not assume every replacement is universal.

If the replacement has conditions, explain them on the product page or in the product title where needed.

Konfigr can show the relationship visually, but the accuracy of the replacement information is still your responsibility.

When to remove a hotspot

Sometimes the right answer is to remove the item from the Konfig.

If the part is no longer sold, has no replacement, and does not help customers identify anything useful, keeping it may create a dead end.

But be cautious. If customers still ask about that part, removing it may increase support questions.

A visible unavailable part with a clear note may be more useful than pretending the position does not exist.

Removing from a Konfig is not deleting the product

You can remove an item from a Konfig without deleting the Shopify product.

That distinction matters.

A product might be removed from one diagram but still belong in another. Or you may want to keep the product record in Shopify for order history, reporting, or future reference.

Keep catalogue cleanup deliberate. Do not delete products just to tidy one diagram.

Use variant changes carefully

If a variant becomes unavailable but another variant remains valid, update the Konfig to point to the correct option.

This can happen with sizes, sides, colours, voltages, materials, or supplier versions.

Check that the new variant genuinely belongs to the same diagram position.

Do not swap variants just to keep an add-to-cart button available.

Review diagrams periodically

Set a review rhythm for important Konfigs.

Check for products that are no longer available, old supplier images, replaced SKUs, dead product links, and parts that should now show alternatives.

This is especially important for catalogues with seasonal demand or fast-changing suppliers.

A parts diagram should stay accurate as the product range changes.

Unavailable parts should not create dead ends

The customer should not click a diagram position and feel stuck.

If a part is out of stock, show that clearly where appropriate. If it is discontinued, guide the customer to the replacement or explain the status on the product page. If there is no replacement, decide whether the position still helps as reference.

The goal is not to hide every unavailable part.

The goal is to make the status clear enough that the customer knows what to do next.