# TriggerApiCallWorkflowRequest
## Properties
**conversation_id** | Option<**String**> | A conversation on the workflow's account | [optional]
**contact_id** | Option<**String**> | A contact with a conversation on the workflow's account | [optional]
**to** | Option<**String**> | Recipient phone in E.164 (WhatsApp workflows only) | [optional]
**variables** | Option<**std::collections::HashMap<String, serde_json::Value>**> | Seed variables, merged over the standard run variables | [optional]
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