---
title: "Changes to Process a prepare Register"
method: POST
path: "/transaction/{apiKey}/prepare-register"
---

# Changes to Process a prepare Register

`POST /transaction/{apiKey}/prepare-register`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 3 of 4 revisions.

- **2026-11-07** `42c40d316a83`: 1 warning, 2 info
- **2025-04-27** `5d765c6bfe90`: 1 info
- **2024-07-22** `65196339abf0`: 1 info

## Changes

- **2026-11-07** `42c40d316a83`: 1 warning, 2 info
  - changed the pattern of the request property `threeDSecureData/browserTimezone/anyOf[subschema #2]/` from `^[\-]?\d+$` to `^[\-\+]?\d{1,4}$`
  - added the new optional request property `customerProfileData/paymentToken`
  - added the new `Eftpos` enum value to the request property `threeDSecureData/schemeId`
- **2025-04-27** `5d765c6bfe90`: 1 info
  - the request property `merchantTransactionId` became optional
- **2024-07-22** `65196339abf0`: 1 info
  - endpoint added

---

[Operation](https://skmtc.dev/tillpayments/apis/till-payments-gateway/docs/transaction/:apiKey/prepare-register/post.md) - [API](https://skmtc.dev/tillpayments/apis/till-payments-gateway.md) - [Page](https://skmtc.dev/tillpayments/apis/till-payments-gateway/changes/transaction/:apiKey/prepare-register/post)