The REST API responds to each request with an HTTP response code. In case of a problem, the system responds with a list of errors.


Name Type Description
errors list<errors> List of errors
(see Errors object below)


Name Type Description
timestamp string Timestamp value
path string URL of the requested method
method string Request method type
status integer Bad response status.
  • 4xx error status codes indicate an error because of the information provided
  • 5xx error status codes indicate server errors
message string Detailed error message
code integer Specific error codes

Success Status Codes

Name Status Description
200 OK The request was successfully completed
201 Create A new resource was successfully created
202 Accepted The request was accepted
204 No Content The server has fulfilled the request but does not need to return a response body

Success Status Codes

Name Status Description
400 Bad Request The request cannot be understood by the server due to incorrect syntax
401 Unauthorized Indicates that the request requires user authentication information
403 Forbidden Unauthorized request. The client does not have access rights to the content
404 Not Found The server cannot find the requested resource
405 Method Not Allowed The request HTTP method is known by the server but has been disabled and cannot be used for that resource
409 Conflict The request could not be completed due to a conflict with the current state of the resource
412 Precondition Failed The client has indicated preconditions in its headers which the server does not meet
413 Payload Too Large Request entity is larger than limits defined by serve
414 URI Too Long The URI requested by the client is longer than the server can interpret
415 Unsupported Media Type The media type in Content-type of the request is not supported by the server
429 Too Many Requests The user has sent too many requests in a given amount of time

Server Error Codes

Name Status Description
500 Internal Server Error The server encountered an unexpected condition which prevented it from fulfilling the request
503 Service Unavailable The server is not ready to handle the request
504 Gateway Timeout The server is acting as a gateway and cannot get a response in time for a request

Error Codes

API error codes are four-digit integers (xxxx). The first digit is allocated for the API version, so for the first version, the code format will be 1xxx. The second digit specifies which segment error is related to (for example, message - 15xx). The last two digits specify the exact problem.


Code Code Description
1001Invalid value is provided
1002Invalid URL is provided
1003Invalid page size is provided, an integer in the range of 1 to 50 should be given/td>
1004Invalid page token is provided. The token should be a text value retrieved from the API
1005Invalid JSON body
1006Not enough funds
1007Request data is missing
1009Invalid Page Token
1012Method not allowed
1013Payload is too large
1014URL is too long
1015Unsupported media type
1029Too many requests


API accepts headers in the request and sends responses with headers as metadata.

Request headers

Name Type Description
Content-Type string Content type of the payload, always expects application/json
X-Dexatel-Key string Authorization key

Response headers

Name Type Description
Location string (URL) Absolute path of newly created object
Content-Type string Content-type of the payload, which always sends application/json
Total-Count integer Total count of the records

Response headers

Name Type Description
X-Dexatel-Signature string Webhook’s payload signed with a secret


The following limits apply for the API.


payload10 KB
media1 MB


string1024 symbols (UTF8)
integer1 to 1.000.000
number1 to 1.000.000,00


contact in an audience10.000
message (active)1.000.000
campaign (active) 1.000
campaign (scheduled)10

Attribute Types

The following string attribute types are used throughout the API:

Name Description Example
uuid 8-4-4-4-12 format string consisting of hex characters (0-f) 01b620c7-8381-4cbf-995c-87456ae04830
url URL starting with http or https
did Up to 15 digits string, consisting of numbers only.
The spaces, dashes and the plus at the beginning to be ignored
identifier Object name used as an identifier.
Consists of letters, numbers, dashes and underscores
name Informative object name. Consists of letters, numbers, spaces, and allowed characters (. , : * _ ! ? % # + - = @ _ [ ] { } ()) late campaign 27/09
template Template text with variables. Contains at least one variable value. Possible variable values are:
  • {first_name}
  • {last_name}
  • {date}
  • {timestamp}
  • {code}
hi {first_name}, you have an appointment at {timestamp}

Uniqueness Constraints

Object attribute values are unique in some scope. When the uniqueness is attempted to be broken by an API request, the 409 error status code is expected to be returned.

Name Description
object ID (uuid) Is unique for all accounts
sender code Is unique for all accounts
template name Is unique in the scope of the account. The account cannot have more than one template with the same name
audience name s unique in the scope of the account. The account cannot have more than one audience with the same name
sender name Is unique in the scope of the channel and account. Sender name is unique for each channel and account
contact Is unique in the scope of the audience and the account. A contact cannot be added in the same audience more than once