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Chat App Message Service:DeleteFlowVersion

Last Updated:Jul 07, 2026

Deletes a flow version.

Operation description

  • You can call this operation to delete a flow version, or click a flow name in the flow editor to go to the canvas orchestration page and manually delete the flow version.

  • Before calling this operation, make sure that the flow version is in the offline state and that at least two flow versions exist.

  • If the flow version is in the online state, click the flow name in the flow editor to go to the canvas orchestration page and manually take the flow version offline, or call the OfflineFlowVersion operation to take the flow version offline.

  • After a flow version is deleted, the canvas flow that you orchestrated cannot be recovered. Proceed with caution.

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RAM authorization

The table below describes the authorization required to call this API. You can define it in a Resource Access Management (RAM) policy. The table's columns are detailed below:

  • Action: The actions can be used in the Action element of RAM permission policy statements to grant permissions to perform the operation.

  • API: The API that you can call to perform the action.

  • Access level: The predefined level of access granted for each API. Valid values: create, list, get, update, and delete.

  • Resource type: The type of the resource that supports authorization to perform the action. It indicates if the action supports resource-level permission. The specified resource must be compatible with the action. Otherwise, the policy will be ineffective.

    • For APIs with resource-level permissions, required resource types are marked with an asterisk (*). Specify the corresponding Alibaba Cloud Resource Name (ARN) in the Resource element of the policy.

    • For APIs without resource-level permissions, it is shown as All Resources. Use an asterisk (*) in the Resource element of the policy.

  • Condition key: The condition keys defined by the service. The key allows for granular control, applying to either actions alone or actions associated with specific resources. In addition to service-specific condition keys, Alibaba Cloud provides a set of common condition keys applicable across all RAM-supported services.

  • Dependent action: The dependent actions required to run the action. To complete the action, the RAM user or the RAM role must have the permissions to perform all dependent actions.

Action

Access level

Resource type

Condition key

Dependent action

cams:DeleteFlowVersion

update

*All Resource

*

None None

Request parameters

Parameter

Type

Required

Description

Example

FlowCode

string

No

The flow code. You can view the flow code in the flow editor.

9ccc41**************************

FlowVersion

string

No

The flow version. Click a flow name in the flow editor to go to the canvas page and view the flow version.

1

BizCode

string

No

The business tenant code. Default value: ALICOM_OPAAS.

Valid values:

  • ALICOM_OPAAS :

    ALICOM_OPAAS

ALICOM_OPAAS

BizExtend

object

No

The business extension information. Default value: an empty collection.

{}

Response elements

Element

Type

Description

Example

object

Response

object

The response content.

434991

AccessDeniedDetail

string

The detailed reason why access was denied.

None

RequestId

string

The request ID.

90E63D28-E31D-1EB2-8939-A94866411B2O

Message

string

The error message.

None

Code

string

The status code.

OK

Success

boolean

Indicates whether the operation was successful. Valid values:

  • true: Successful.

  • false: Failed.

true

Examples

Success response

JSON format

{
  "Response": 434991,
  "AccessDeniedDetail": "None",
  "RequestId": "90E63D28-E31D-1EB2-8939-A94866411B2O",
  "Message": "None",
  "Code": "OK",
  "Success": true
}

Error codes

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.