Post-Purchase fields

Payments + Shipping & Fulfilment
, , ,

Topic summary

A store owner selling digital Roblox products needs to collect customers’ Roblox usernames after payment to fulfill orders. They want this information captured on the post-purchase (thank you) page.

Current situation:

  • Tested multiple apps without finding suitable functionality
  • Needs a custom field for username entry that integrates with order details

Seeking solution:
The user believes custom coding may be necessary and is requesting guidance on implementation, as existing app solutions haven’t met their requirements for capturing post-purchase customer data.

Summarized with AI on October 29. AI used: claude-sonnet-4-5-20250929.
1

Hi, I am making a store for digital products in Roblox. To deliver my products, I will need the customer’s Roblox username. I want them to enter this after they pay, so on the post-purchase (thank you) page would be perfect.
I have tried literally every app out there, and none seem to be able to give me the functionality I want: A custom field where customers can enter their username, and I receive that data in the order details

How do I achieve this? I don’t think using apps will work, and I think I need to code it myself.
Please help me out