--- title: "Changes to Create a new object type" method: POST path: "/media-bridge/2026-03/{appId}/settings/object-definitions" --- # Changes to Create a new object type `POST /media-bridge/2026-03/{appId}/settings/object-definitions` > Every recorded change to this operation, newest first. > 14 revisions in range; 1 not diffed, 2 could not be searched. ## Timeline Changed in 3 of 14 revisions. - **2026-05-27** `f9c7181056c5`: 1 info - **2026-03-30** `dc2fdad57f7f`: 4 breaking, 179 warning, 48 info - **2026-03-25** `62586336cea2`: 1 info ## Changes - **2026-05-27** `f9c7181056c5`: 1 info - added the optional property `createdObjects/additionalProperties/objectType/visibility_values` to the response with the `200` status - **2026-03-30** `dc2fdad57f7f`: 4 breaking, 179 warning, 48 info - for the `path` request parameter `appId`, the type changed from `string` to `integer`, and format from no format to `int32` - the `createdObjects/additionalProperties/properties/items/property/createdAt` response's property type changed from `string` to `integer`, and format from `date-time` to `int64` for status `200` - the `createdObjects/additionalProperties/properties/items/property/createdUserId` response's property type changed from `string` to `integer`, and format from no format to `int64` for status `200` - the `createdObjects/additionalProperties/properties/items/property/updatedAt` response's property type changed from `string` to `integer`, and format from `date-time` to `int64` for status `200` - removed the optional property `createdObjects/additionalProperties/properties/items/property/archived` from the response with the `200` status - removed the optional property `createdObjects/additionalProperties/properties/items/property/archivedAt` from the response with the `200` status - removed the optional property `createdObjects/additionalProperties/properties/items/property/calculationFormula` from the response with the `200` status - removed the optional property `createdObjects/additionalProperties/properties/items/property/modificationMetadata` from the response with the `200` status - removed the optional property `createdObjects/additionalProperties/properties/items/property/updatedUserId` from the response with the `200` status - added the new `ABANDONED_CART` enum value to the `createdObjects/additionalProperties/properties/items/property/referencedObjectType` response property for the response status `200` - added the new `ACCEPTANCE_TEST` enum value to the `createdObjects/additionalProperties/properties/items/property/referencedObjectType` response property for the response status `200` - added the new `AD` enum value to the `createdObjects/additionalProperties/properties/items/property/referencedObjectType` response property for the response status `200` - added the new `AD_ACCOUNT` enum value to the `createdObjects/additionalProperties/properties/items/property/referencedObjectType` response property for the response status `200` - added the new `AD_CAMPAIGN` enum value to the `createdObjects/additionalProperties/properties/items/property/referencedObjectType` response property for the response status `200` - added the new `AD_GROUP` enum value to the `createdObjects/additionalProperties/properties/items/property/referencedObjectType` response property for the response status `200` - added the new `AI_FORECAST` enum value to the `createdObjects/additionalProperties/properties/items/property/referencedObjectType` response property for the response status `200` - added the new `ALL_PAGES` enum value to the `createdObjects/additionalProperties/properties/items/property/referencedObjectType` response property for the response status `200` - added the new `APPROVAL` enum value to the `createdObjects/additionalProperties/properties/items/property/referencedObjectType` response property for the response status `200` - added the new `APPROVAL_STEP` enum value to the `createdObjects/additionalProperties/properties/items/property/referencedObjectType` response property for the response status `200` - added the new `ATTRIBUTION` enum value to the `createdObjects/additionalProperties/properties/items/property/referencedObjectType` response property for the response status `200` - added the new `AUDIENCE` enum value to the `createdObjects/additionalProperties/properties/items/property/referencedObjectType` response property for the response status `200` - added the new `AUTOMATION_JOURNEY` enum value to the `createdObjects/additionalProperties/properties/items/property/referencedObjectType` response property for the response status `200` - added the new `AUTOMATION_PLATFORM_FLOW` enum value to the `createdObjects/additionalProperties/properties/items/property/referencedObjectType` response property for the response status `200` - added the new `AUTOMATION_PLATFORM_FLOW_ACTION` enum value to the `createdObjects/additionalProperties/properties/items/property/referencedObjectType` response property for the response status `200` - added the new `BET_ALERT` enum value to the `createdObjects/additionalProperties/properties/items/property/referencedObjectType` response property for the response status `200` - added the new `BET_DELIVERABLE_SERVICE` enum value to the `createdObjects/additionalProperties/properties/items/property/referencedObjectType` response property for the response status `200` - added the new `BLOG_LISTING_PAGE` enum value to the `createdObjects/additionalProperties/properties/items/property/referencedObjectType` response property for the response status `200` - added the new `BLOG_POST` enum value to the `createdObjects/additionalProperties/properties/items/property/referencedObjectType` response property for the response status `200` - added the new `CALL` enum value to the `createdObjects/additionalProperties/properties/items/property/referencedObjectType` response property for the response status `200` - added the new `CAMPAIGN` enum value to the `createdObjects/additionalProperties/properties/items/property/referencedObjectType` response property for the response status `200` - added the new `CAMPAIGN_BUDGET_ITEM` enum value to the `createdObjects/additionalProperties/properties/items/property/referencedObjectType` response property for the response status `200` - added the new `CAMPAIGN_SPEND_ITEM` enum value to the `createdObjects/additionalProperties/properties/items/property/referencedObjectType` response property for the response status `200` - added the new `CAMPAIGN_STEP` enum value to the `createdObjects/additionalProperties/properties/items/property/referencedObjectType` response property for the response status `200` - added the new `CAMPAIGN_TEMPLATE` enum value to the `createdObjects/additionalProperties/properties/items/property/referencedObjectType` response property for the response status `200` - added the new `CAMPAIGN_TEMPLATE_STEP` enum value to the `createdObjects/additionalProperties/properties/items/property/referencedObjectType` response property for the response status `200` - added the new `CART` enum value to the `createdObjects/additionalProperties/properties/items/property/referencedObjectType` response property for the response status `200` - added the new `CASE_STUDY` enum value to the `createdObjects/additionalProperties/properties/items/property/referencedObjectType` response property for the response status `200` - added the new `CHATFLOW` enum value to the `createdObjects/additionalProperties/properties/items/property/referencedObjectType` response property for the response status `200` - added the new `CLIP` enum value to the `createdObjects/additionalProperties/properties/items/property/referencedObjectType` response property for the response status `200` - added the new `CMS_URL` enum value to the `createdObjects/additionalProperties/properties/items/property/referencedObjectType` response property for the response status `200` - …191 more - **2026-03-25** `62586336cea2`: 1 info - endpoint added --- [Operation](https://skmtc.dev/hubspot/apis/hubspot-api-specification/docs/media-bridge/2026-03/:appId/settings/object-definitions/post.md) - [API](https://skmtc.dev/hubspot/apis/hubspot-api-specification.md) - [Page](https://skmtc.dev/hubspot/apis/hubspot-api-specification/changes/media-bridge/2026-03/:appId/settings/object-definitions/post)