Limits - Instant Messaging

Instant Messaging

API Reference

Update time: 2022/12/08 11:06:02

Messaging

Item	Limit
Message body	The maximum length of the body field can contain 5,000 characters
Image message	No limit is applied. Implement limits based on your business requirements.
Audio message	The default recording duration lasts 120 seconds (custom configuration is supported). The file size is unlimited. Implement limits based on your business scenario.
Video message	The video duration and size are unlimited. Implement limits based on your business scenario.
File message	Size of upload files from the SDK is unlimited. The maximum size of upload files from the server is 15 MB. Implement limits based on your business scenario.
offline messages	For peer-to-peer chats: the last 5,000 offline messages within 30 days are delivered (up to 100 messages per session). For group chats: offline messages for the last 30 days are delivered (up to 100 messages per session). Note: Offline messages for chat rooms are not supported.
Roaming message	Roaming messages in the last 100 sessions within 7 days, the last 100 messages per session are roamed
Validity period for P2P chat or group chat message history	7 days for the free tier; 1 year for IM Pro, up to 3 years can be extended (value-added)
Validity period for chat room message history	10 days
the NOS storage service	Free tier: 1 TB; IM Pro: 1 TB, up to 1000 TB can be extended (value-added)

For the charges of the previous value-added features, see Pricing.

Item	Limit
Number of friends	3,000 friends can be added by default, and 10,000 friends can be extended.

Parameter	Type	Description
accid	String	User account, up to 32 characters, unique within your app.
name	String	The nickname can contain up to 64 characters
icon	String	User icon, up to 1024 characters.
sign	String	Bio, up to 256 characters.
email	String	The email can contain up to 64 characters.
birth	String	User icon, up to 16 characters.
mobile	String	Mobile phone number, up to 32 characters, only phone numbers registered in China are supported
gender	int	Gender, 0: Prefer not to respond, 1: male, 2: female. Other values return an error.
ex	String	Profile extension field, up to 1,024 characters are allowed. You can customize the field. A JSON string is preferred.

Item	Limit
Group capacity	200 people/group. You can increase the quota to 500 people/group.
Number of groups a user can create	100 groups/account (50 groups/account for the free tier), You can increase the quota to 2,000 people/group.
Number of groups a user can join	5,000 groups/account

For the charges of the previous value-added features, see Pricing.

Item	Limit
Chat room capacity	No limit is applied
Number of chat rooms a user can create	200 chat rooms per user. To expand the capacity, contact the account manager.
Multi-device logins for the same chat room	By default, only one device is allowed to join a chat room at the same time. You can configure the settings in the CommsEase console.

To configure settings in the console, log in to the CommsEase console

Item	Limit
Subscription	Subscribe to the online status events of specified users. Each account has a maximum of 3,000 valid subscription accounts.

Item	Limit
Message traffic control in chat rooms	By default, 20 regular messages and 10 high-priority messages can be sent in one second.
Send a regular message	100 times per second by default.
Send a custom system notification	100 times per second by default.
Send multiple common messages at a time	120 times per second by default.
Send multiple system notifications at a time	120 times per second by default.
Group management operations	100 times per second by default.
Send a broadcast message	10 times per second by default.
Send a message in a chat room	100 times per second by default.
Send a broadcast message across all chat rooms	10 times per second by default.

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