> ## Documentation Index
> Fetch the complete documentation index at: https://cometchat-22654f5b-feature-react-native-sdk-quotedmessage-a.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Constraints, Rate Limits And Errors

## Properties and Constraints:

| Item                                        | Property or Constraint | Notes                                                                                                                                                                                                                                                                                         |
| ------------------------------------------- | ---------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Number of entities required in each request | 50                     | Our API boosts the efficiency of processing requests by enabling users to transmit up to 50 entities within a single request.                                                                                                                                                                 |
| Number of requests allowed in a minute      | 60                     | To ensure equitable usage and uphold service quality standards, CometChat enforces rate limits on each API endpoint. Specifically, a maximum of 60 requests per minute is permitted for these data import endpoints. Upon exceeding this limit, the API will respond with a rate limit error. |

## Errors:

| Error                               | Description                                                                                                             |
| ----------------------------------- | ----------------------------------------------------------------------------------------------------------------------- |
| `ERR_IMPORT_MUID_ALREADY_EXISTS`    | The message `muid` is expected to be unique. The muid will be a unique Identifier of the message.                       |
| `ERR_IMPORT_INVALID_MESSAGE_FORMAT` | The value for messages property should be an array of message objects                                                   |
| `ERR_IMPORT_INVALID_USER_FORMAT`    | The value for users property should be an array of user objects.                                                        |
| `ERR_IMPORT_INVALID_MEMBER_FORMAT`  | The value for members property should be an array of member objects.                                                    |
| `ERR_IMPORT_INVALID_JOINEDAT`       | The value for `joinedAt` should be greater than `createdAt` and less than the current timestamp.                        |
| `ERR_IMPORT_INVALID_GROUP_FORMAT`   | The value for groups property should be an array of group objects.                                                      |
| `ERR_TOO_MANY_REQUESTS`             | Too many requests for data import API. 60 per minute is the maximum request allowed. Please retry for seconds after 58. |