--- schema_version: "1" id: de80cac1c62c33e7377e9e368cf52dc4e2f996ad67eb414cb3b292d7f5808206 title: 200–299 Asynchronous Operation collection: developer version: current locale: en-us portal_url: https://docs.salesforce.com/developer/current/en-us/marketing-cloud/guides/mc-apis/200_299_asynchronous_operation.md canonical_url: https://developer.salesforce.com/docs/marketing/marketing-cloud/guide/200_299_asynchronous_operation.html source_site: developer.salesforce.com content_type: documentation content_hash: 1882b4b86052489a911b44706f47f208b3aa548e6cc375a4e8264ad67164bf24 products: - Marketing Cloud Engagement APIs and Programmatic Languages - Marketing Cloud --- # 200–299 Asynchronous Operation | Error | Message | Resolution | | ----- | ---------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | | `200` | CallsInConversation don’t match previous value in the Conversation. Conversation has been invalidated. | A conversation part has a `CallsInConversation` value that doesn’t match the value specified in the first conversation part. Use the same `CallsInConversation` value in all conversation parts. The value must equal the total number of conversation parts for the conversation. | | `201` | Async API Collection Total Mismatch. | ― | | `202` | Missing Required Conversation Property SequenceCode. ConversationID, SequenceCode, and CallsInConversation are required for Conversations Requests. | The request specifies a value for `Options.CallsInConversation`, but doesn’t include the `Options.SequenceCode` property. `Options.SequenceCode` and `Options.CallsInConversation` both default to `1` when neither is specified. | | `203` | Async API Timeout. | The conversation context timed out. Ensure that you’re using a current and correct conversation ID in your calls. | | `204` | Async API Error. | The object being created, updated, or deleted failed validation. Check the object syntax and structure in your code. | | `205` | SequenceCode Out Of Bounds. Valid SequenceCode range is 1 to the value of CallsInConversation. | The `SequenceCode` denotes the sequential order to process the conversation parts. Set `SequenceCode` to an integer greater than or equal to 1 and less than or equal to the value of `CallsInConversation`. | | `206` | CallsInConversation Out Of Bounds. CallsInConversation is expected to be a positive number. | Set `Options.CallsInConversation` to an integer greater than or equal to 1. | | `207` | Missing Required Conversation Property ConversationID. ConversationID, SequenceCode, and CallsInConversation are required for Conversations Requests. | `ConversationID` isn’t specified in the `Options` object or its value is null. If the request specifies values for the `SequenceCode` and `CallsInConversation` properties, it must also include a unique value for `ConversationID`. Set `Options.ConversationID` to a non-null string value. | | `208` | Missing Required Conversation Property CallsInConversation. ConversationID, SequenceCode, and CallsInConversation are required for Conversations Requests. | `CallsInConversation` hasn’t been specified in the `Options` object for the request. `CallsInConversation` is a required property for conversation requests that specify a `SequenceCode`, `ConversationID`, and that have a `RequestType` value of `Asynchronous`. If you didn’t specify a `SequenceCode` in the request, then `CallsInConversation` isn’t required. If you don’t provide values for `SequenceCode` and `CallsInConversation`, they both default to 1 and the request is interpreted as a single-part conversation. For multi-part conversations, you must specify a `CallsInConversation` value that’s greater than or equal to 1, and that equals the total number of conversation parts. | | `209` | Options.RequestType is required to be set to RequestType.Asynchronous. | Set `Options.RequestType` to `Asynchronous`. | | `211` | Invalid ConversationID. ConversationID has already been used. | Conversation IDs can’t be reused. This error is returned when a `ConversationID` is reused. It can occur even when the conversations associated with the ID have timed out or produced an error. If the conversation has multiple parts, then each part must use the same `ConversationID`. Set the value of `ConversationID` to a unique value for each set of conversations. | | `212` | Invalid Conversation. | This general error indicates an unspecified problem with a conversation. The conversation doesn’t have a status of `Closed`, `Processing`, `Error`, `Complete`, or `Timeout`. Contact Global Support for help. | | `213` | Conversation is in an error state and is no longer able to accept conversation parts. | When a conversation is in an error state, all conversation parts for its `ConversationID` return this message. Closing the conversation results in an error. Review the previous responses, locate the error, fix it, and then resubmit the entire conversation with a new `ConversationID`. | | `214` | SequenceCode already used for Conversation. Conversation has been invalidated. | `SequenceCodes` within a conversation are unique. After a conversation part has been accepted with a particular `SequenceCode`, that value can’t be repeated in the conversation. This error results in the conversation being in an error state. Set `Options.SequenceCodes` in all conversation parts to sequential values. The first conversation part must have a `SequenceCode` value of 1, and the last part must equal the value of `CallsInConversation`. Resubmit the entire conversation with a new `ConversationID`. | | `215` | Conversation is closed and cannot accept more parts. | Conversations are closed and ready for processing when all parts have been received. After a conversation is closed, no new parts are accepted. When you receive this error, you don’t need to do anything unless you intended for the rejected conversation part to be part of the closed conversation. | | `218` | Too many objects. | Limit the number of API objects in each request. For more information, see [API Limits and Guidelines](https://help.salesforce.com/s/articleView?id=mktg.mc_overview_limits_api.htm). | | `226` | A request may not have ScheduledTime greater than 30 days from now. | Schedule conversation and non-conversation messages 30 days in the future or fewer. | | `227` | An unsecure response address specified in the SendResponseTo parameter. | Unsecured HTTP endpoints aren't supported. Use an HTTPS endpoint for HTTP callbacks. | | `228` | A request cannot have a request expiration time before the current time. | Set the `RequestExpirationTime` to a later time so that the request can be added to the processing queue before it expires. | | `229` | A request cannot have a request expiration time before the scheduled time. | Set the `RequestExpirationTime` to occur after the `ScheduledTime`. | | `230` | Request Expired, expired time was 01/31/2024 12:01:00 UTC request start time was 01/31/2024 12:02:00 UTC. | Set the `RequestExpirationTime` to a later time. | | `231` | A request with an expiration time requires a time zone offset. | Set the `RequestExpirationTime` in UTC or with a time zone offset. | | `232` | A request with an expiration time requires Scheduled Time to have a time zone offset. | When a request includes a `RequestExpirationTime` and a `ScheduledTime`, you must specify the time zone offset for `ScheduledTime`. | | `233` | A request with expiration time does not support multi-part conversation. | Remove the `Options.RequestExpirationTime` property, or send the request as a single-part conversation. |