Goal: Assign a sequential number to each item sold (e.g., 1 of 50 … 50 of 50) and show the buyer’s assigned number (including multiple quantities like 13,14,15) in the order confirmation email.
Proposed approaches:
Use a metafield (custom data field) to store a starting point and calculate the buyer’s number from current inventory or quantity purchased. Caveat: numbers may be out of sequence if multiple customers purchase nearly simultaneously.
For true, ordered “certificate-of-authenticity (COA)” style numbering, build advanced customization: add metafields/metaobjects (structured data) to products and orders, and modify theme and notification templates. Account for order edits, returns, and refunds.
Create a custom Shopify app or script to generate sequential numbers per checkout, track inventory automatically, and inject unique IDs into the confirmation email. Some ticketing/serial-number apps might be adaptable.
Status and outcomes:
No ready-made app was identified. Service offers were made to build a custom solution.
The requester asked for concrete implementation ideas; detailed how-to steps remain unanswered. Discussion is open.
Summarized with AI on December 11.
AI used: gpt-5.
Looking for an app that will allow a product to be sold, and numbered after checkout. Example; 300 quantity, when sold and after checkout each item would be 1 of 1, 2 of 2, etc etc. Even if someone bought 3 of the same item, and it was number 13,14,15 it would show this in their receipt e-mail that they get.
I have searched and searched the forums with out any luck. Ive stumbled across ticket sales apps etc but yet i don’t think this will work. I know it can be done im sure with someone that knows coding, but im not sure where to start. I know of 1 other store that had this done, but they haven’t responded to me, nor do I think they will.
Hi @IsmellSmoke If the inventory is FINITE you’d just put the inventory starting point in a metafield and reference that in a calculation of the current inventory or how many quantity was bought in that order ? and or fulfilled?. Note this isn’t like a certificate-of-authenticity(COA) scheme because numbers could be out of sequence for customers buying near the same time etc.
Otherwise to be more like a COA this is a very advanced customization/automation I’ve built similar before.
Roughly you have to set either a metafield/metaobject on the product and the orders and customize either the theme and or also notification templates.
And that’s the simple version that doesn’t account for order-edits,returns, or refunds, etc etc etc.
You can reach out to me for customization , and OR automation services. CLICK profile-pic on forums for options to connect. ALWAYS include context in new communications, e.g. reference urls, posts urls, etc
Hi Paul. Thanks for answering my questions about the numbers. What i’m wanting to do is sell an item, and issue each item sold a number. For example i will set the inventory to the quantity that i want to sell, lets say 50 for this example. Once 50 sold item has been sold that will set it to sold out. But, what im looking for is if you are the 15th person to buy this item, it will show in your email receipt that you are assigned number “15”. I hope this makes sense.
This can be done through a custom Shopify app/script that creates sequential numbers per item per checkout. It would track inventory, assign numbers automatically and then update the order confirmation email with those unique IDs. A ticketing or serial number app could perhaps be modified for this use as well.
If the inventory is FINITE you’d just put the inventory starting point in a metafield and reference that in a calculation of the current inventory or how many quantity was bought in that order ? and or fulfilled?. Note this isn’t like a certificate-of-authenticity(COA) scheme because numbers could be out of sequence for customers buying near the same time etc.
CLICK profile-pic on forums for options to connect.