---
title: "Changes to Add Screening Secondary"
method: POST
path: "/screenings/{id}/secondaries"
---

# Changes to Add Screening Secondary

`POST /screenings/{id}/secondaries`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 2 of 11 revisions.

- **2026-09-26** `9a3b0a312528`: 1 info
- **2026-09-11** `fba1aea33824`: 2 info

## Changes

- **2026-09-26** `9a3b0a312528`: 1 info
  - added the required property `allow_synthetic_covariance` to the response with the `200` status
- **2026-09-11** `fba1aea33824`: 2 info
  - added the optional property `engine_used` to the response with the `200` status
  - added the required property `engine` to the response with the `200` status

---

[Operation](https://skmtc.dev/satcat/apis/satcat-service-api/docs/screenings/:id/secondaries/post.md) - [API](https://skmtc.dev/satcat/apis/satcat-service-api.md) - [Page](https://skmtc.dev/satcat/apis/satcat-service-api/changes/screenings/:id/secondaries/post)