---
title: "Changes to Generate Video from Template"
method: POST
path: "/v3/templates/{template_id}"
---

# Changes to Generate Video from Template

`POST /v3/templates/{template_id}`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 1 of 2 revisions.

- **2026-11-03** `7dfa5e59b4f5`: 2 breaking, 25 info

## Changes

- **2026-11-03** `7dfa5e59b4f5`: 2 breaking, 25 info
  - removed the enum value `avatar` of the request property `variables/additionalProperties/oneOf[subschema #5: TemplateCharacterVariable]/character_type`
  - removed the enum value `talking_photo` of the request property `variables/additionalProperties/oneOf[subschema #5: TemplateCharacterVariable]/character_type`
  - added the new optional request property `brand_glossary_id`
  - added the new optional request property `variables/additionalProperties/oneOf[subschema #5: TemplateCharacterVariable]/avatar_id`
  - added the new optional request property `variables/additionalProperties/oneOf[subschema #5: TemplateCharacterVariable]/avatar_look_id`
  - the request property `variables/additionalProperties/oneOf[subschema #5: TemplateCharacterVariable]/character_id` became optional
  - the `character_type` request property default value `avatar` was removed
  - request property `brand_voice_id` deprecated
  - request property `variables/additionalProperties/oneOf[subschema #5: TemplateCharacterVariable]/character_id` deprecated
  - request property `variables/additionalProperties/oneOf[subschema #5: TemplateCharacterVariable]/character_type` deprecated
  - added `asset_id, base64, url` discriminator mapping keys to the `variables/additionalProperties/oneOf[subschema #2: TemplateImageVariable]/asset` request property
  - added `asset_id, base64, url` discriminator mapping keys to the `variables/additionalProperties/oneOf[subschema #3: TemplateVideoVariable]/asset` request property
  - added `asset_id, base64, url` discriminator mapping keys to the `variables/additionalProperties/oneOf[subschema #4: TemplateAudioVariable]/asset` request property
  - added `audio, character, image, text, video, voice` discriminator mapping keys to the `variables/additionalProperties/` request property
  - request property `variables/additionalProperties/oneOf[subschema #5: TemplateCharacterVariable]/character_id` list-of-types was widened by adding types `null` to media type `application/json`
  - request property `variables/additionalProperties/oneOf[subschema #5: TemplateCharacterVariable]/character_type` list-of-types was widened by adding types `null` to media type `application/json`
  - the `variables/additionalProperties/oneOf[subschema #5: TemplateCharacterVariable]/character_id` request property's minLength was decreased from `1` to `0`
  - added the optional property `error/errors` to the response with the `400` status
  - added the optional property `error/errors` to the response with the `401` status
  - added the optional property `error/errors` to the response with the `404` status
  - added the optional property `error/errors` to the response with the `409` status
  - added the optional property `error/errors` to the response with the `429` status
  - added the optional property `error/request_id` to the response with the `400` status
  - added the optional property `error/request_id` to the response with the `401` status
  - added the optional property `error/request_id` to the response with the `404` status
  - added the optional property `error/request_id` to the response with the `409` status
  - added the optional property `error/request_id` to the response with the `429` status

---

[Operation](https://skmtc.dev/heygen/apis/heygen-external-api/docs/v3/templates/:template_id/post.md) - [API](https://skmtc.dev/heygen/apis/heygen-external-api.md) - [Page](https://skmtc.dev/heygen/apis/heygen-external-api/changes/v3/templates/:template_id/post)