---
title: "Changes to Submit IF-020 with Event Code RelatedCreate message for validation"
method: POST
path: "/validate/IF-020/RelatedCreate"
---

# Changes to Submit IF-020 with Event Code RelatedCreate message for validation

`POST /validate/IF-020/RelatedCreate`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 1 of 2 revisions.

- **2026-10-22** `d9dfdef064ae`: 2 breaking

## Changes

- **2026-10-22** `d9dfdef064ae`: 2 breaking
  - removed the enum value `[RelatedAdd]` of the request property `items/payload/CommonBlock/S0/eventCode`
  - removed the enum value `[RelatedRemove]` of the request property `items/payload/CommonBlock/S0/eventCode`

---

[Operation](https://skmtc.dev/elexon/apis/mhhs-dip/docs/validate/IF-020/RelatedCreate/post.md) - [API](https://skmtc.dev/elexon/apis/mhhs-dip.md) - [Page](https://skmtc.dev/elexon/apis/mhhs-dip/changes/validate/IF-020/RelatedCreate/post)