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Flex Messaging Limits

This guide is for Flex UI 1.x and channels that use Programmable Chat and Proxy. If you are using Flex UI 2.x or you are starting out, we recommend that you build with Flex Conversations (beta).

Due to various limitations and concerns, Flex messaging orchestration will constrain certain actions.

Rate limits on API endpoints

Rate limits return HTTP 429 when exceeded and should be handled accordingly on the customer side.

Action

Default Limit

Notes

WebChat creation

5 per second

Used when creating a new WebChat object for agents/customers to interact. This is per account. Contact sales for more information or to request an override.

Proxy Out-of-Session callbacks

10 per second

Used when orchestrating a new messaging conversation. This is per account. Contact sales for more information or to request an override.

Flex Flows

2500

You can have up to 2500 Flex Flows per account.

Endpoint

Method

Description

Rate Limit

/FlexFlows

GET

Lists all Flex Flows for an account

10

/FlexFlows/FOxx

GET

Queries a specific Flex Flow’s configuration

2

/FlexFlows

POST

Creates a new Flex Flow

2

/FlexFlows/FOxx

POST

Updates a Flex Flow’s configuration

1

/FlexFlows/FOxx

DELETE

Deletes a Flex Flow

2

/WebChannels

GET

Lists all WebChannels for current account

1

/WebChannels/CHxx

GET

Queries a specific WebChannel’s configuration

1

/WebChannels

POST

Creates a WebChannel

5

/WebChannels/CHxx

POST

Updates a WebChannel’s configuration

1

/WebChannels/CHxx

DELETE

Deletes a WebChannel

1

/WebChannels/Users

POST

Adds member to a WebChannel

10

/channels

GET

Lists all channels

5

/channels/CHxx

GET

Queries a specific channel’s configuration

3

/channels

POST

Creates a new channel

10

/channels/CHxx

DELETE

Deletes a channel

10

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