SMS - Send a Message to Multiple Recipients
POST https://{{et_subdomain}}.rest.marketingcloudapis.com/messaging/v1/sms/messages
Sends a message to multiple recipients using a send definition. You can provide a messageKey in the request; otherwise, the messageKey is automatically generated in the response.
Request Body
{"definitionKey"=>"tapi-sms-demo-postman", "recipients"=>[{"contactKey"=>"DD301", "to"=>"15559083119", "messageKey"=>"{{$guid}}", "attributes"=>{"FirstName"=>"Aaron", "Password"=>"1234567"}}, {"contactKey"=>"DD302", "to"=>"15015553119", "messageKey"=>"{{$guid}}", "attributes"=>{"FirstName"=>"William", "Password"=>"2345678"}}], "attributes"=>{"CommonAttributeExample"=>"2"}}