Context block
Displays small, secondary text and images — who, when, where — under other content.
| Type | context |
| Available in | Messages, Modals, Home tab |
| Compatible block elements | Image element |
Fields
Section titled “Fields”| Field | Type | Description | Required? |
|---|---|---|---|
type |
String | The type of block. For a context block, type is always context. |
Required |
elements |
Object[] | An array of image elements and text objects. Maximum of 10 items. | Required |
block_id |
String | A unique identifier for the block. Maximum length is 255 characters. It must be unique within the message or view — a duplicate is replaced and reported as a warning. | Optional |
Examples
Section titled “Examples”Ticket details
Section titled “Ticket details”
{ "blocks": [ { "type": "section", "text": { "type": "mrkdwn", "text": "*#4821* Card reader not connecting after update" } }, { "type": "context", "elements": [ { "type": "image", "image_url": "https://picsum.photos/id/20/64/64", "alt_text": "Customer portal" }, { "type": "mrkdwn", "text": "Opened via *Customer portal*" }, { "type": "mrkdwn", "text": "Priority: *High*" }, { "type": "plain_text", "text": "Updated 5 minutes ago" } ] } ]}