---
title: "Changes to Simulate a Transaction"
method: POST
path: "/sandbox/mock_transactions"
---

# Changes to Simulate a Transaction

`POST /sandbox/mock_transactions`

> Every recorded change to this endpoint, newest first.

## Timeline

Changed in 1 of 2 revisions.

- **2026-08-21** `54f4fe726d8f` — 4 breaking, 4 warning

## Changes

- **2026-08-21** `54f4fe726d8f` — 4 breaking, 4 warning
  - added `#/components/schemas/0` to the `allOf[subschema #1]/counterparty_address/oneOf[subschema #3]/country` request property `allOf` list
  - added `#/components/schemas/0` to the `allOf[subschema #1]/counterparty_bank_address/allOf[subschema #1: Unstructured Address]/country` request property `allOf` list
  - added `#/components/schemas/0` to the `allOf[subschema #1]/intermediary_bank_address/allOf[subschema #1: Unstructured Address]/country` request property `allOf` list
  - the `allOf[subschema #1]/counterparty_address/oneOf[subschema #1: Structured Address]/city` request property's maxLength was decreased to `33`
  - removed `#/components/schemas/0` from the `allOf[subschema #1]/counterparty_address/oneOf[subschema #3]/country` request property `allOf` list
  - removed `#/components/schemas/0` from the `allOf[subschema #1]/counterparty_bank_address/allOf[subschema #1: Unstructured Address]/country` request property `allOf` list
  - removed `#/components/schemas/0` from the `allOf[subschema #1]/intermediary_bank_address/allOf[subschema #1: Unstructured Address]/country` request property `allOf` list
  - changed the pattern of the request property `allOf[subschema #1]/counterparty_address/oneOf[subschema #1: Structured Address]/city` from `^[^#@\$!"%&\*;<>\{\}_\^\\~\]\[]{1,35}$` to `^[^#@\$!"%&\*;<>\{\}_\^\\~\]\[]{1,33}$`

---

[Operation](https://skmtc.dev/newline53/apis/newline-platform-api/docs/sandbox/mock_transactions/post.md) · [API](https://skmtc.dev/newline53/apis/newline-platform-api.md) · [Page](https://skmtc.dev/newline53/apis/newline-platform-api/changes/sandbox/mock_transactions/post)