When you save content, several values are automatically assigned.
These automatically assigned values can be checked and modified in the Administration console. They can also be retrieved via the Content API.

id: Content ID

This is the ID of the created content. It is composed of a string according to the Content ID settings.
The Content ID can be edited in the Administration console. The allowable character count is from 1 to 50 characters.
Additionally, since it is a unique value for each API, it can also be used as a slug (a part of the URL).

createdAt: Content Creation Date

This is the date and time when the content was created.
The creation date will not be updated after the content is created.

updatedAt: Content Update Date

The date and time when the content was updated.

When the Value is Updated

The value is updated when any of the following actions are performed.

Actions in the Administration Console

• When the [Publish] button is clicked
• When the [Re-Publish] button is clicked
• When the [Save as Draft] button is clicked
• When the [Add Draft] button is clicked
• When the [Discard Draft] button is clicked
• When the [Revert to Draft] button is clicked
• When the [End Publication] button is clicked
• When the publication status changes due to Scheduled Start/End of Publication
• When the Content ID is changed

Actions via API

Content API

• When content is registered using the POST API
• When content is registered using the PUT API
• When content is updated using the PATCH API

Management API

• When the publication status of the content actually changes due to Status Change (the applicable changes are: "Published" → "Draft", "Draft" → "Published", "Published and Draft" → "Published (Draft Discarded)")

publishedAt: Content Publication Date

This is the date and time when the content was published.

Timing of Value Updates

The value is assigned or updated when any of the following actions are performed.

Actions in the Administration Console

• When the [Publish] button is clicked (excluding content that is "Published and Draft")
• When the [Re-Publish] button is clicked
• When the publication date is edited to a specific date in the Administration Console

Actions via API

Content API

• When content is registered using the POST API (excluding cases where the status=draft or status=closed parameters are applied)
• When content is registered using the PUT API (excluding cases where the status=draft or status=closed parameters are applied)

Management API

• When the status is changed (only from "Draft" to "Published")

Examples of Timing for Publication Date Updates

Here are some examples of when the publication date is updated.

Example 1: After Publishing, if Rewritten and then Re-Published

1. Draft → Published: Publication date is assigned
2. Published → Published and Draft (after rewriting and adding a draft): Publication date is not updated
3. Published and Draft → Published: Publication date is not updated

Example 2: After Publishing, if Returned to Draft and then Re-Published

1. Draft → Published: Publication date is assigned
2. Published → Draft (returned to draft): Publication date is not updated
3. Draft → Published: Publication date is updated

revisedAt: Content Revision Date

This is the date when the published content was updated.

Timing of Value Updates

The value is assigned or updated when any of the following actions are performed.

Actions in the Administration Console

• When the [Publish] button is clicked
• When the [Re-Publish] button is clicked
• When content is published via Scheduled Publishing

Actions via API

Content API

• When content is registered using the POST API (excluding cases where status=draft or status=closed parameters are applied)
• When content is registered using the PUT API (excluding cases where status=draft or status=closed parameters are applied)
• When content is updated using the PATCH API

Management API

• When the status is changed (only from "Draft" to "Published")

Examples of Timing for Revision Date Updates

Here are examples of when the revision date is updated.

[Example 1] After Publishing, if a Rewrite is Done and then Re-Published

1. Draft → Published: Revision date is assigned
2. Published → Published and Draft (after rewriting and adding a draft): Revision date is not updated
3. Published and Draft → Published: Revision date is updated