---
title: Scheduling messages using HTTP API 
description: SMS Global Knowledgebase
---

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# Scheduling messages using HTTP API 

## How to schedule an SMS to be sent at a future time, with HTTP API

To schedule a message for later sending, first include the parameter **'*scheduledatetime'****.* This should be in the format:

```
YYYY-MM-DD HH:MM:SS
```

- This parameter must be URL encoded
- The time must be in AEDT

An example request containing this parameter might look like the following:

```
https://api.smsglobal.com/http-api.php?action=sendsms&user=USERNAME&password=PASSWORD&to=61447100250&from=SMSGlobal&text=Hello!&scheduledatetime=2021-06-09%2015%3A00%3A00
```

**Note:** as usual, you will want to URL encode this ***scheduledatetime*** parameter.  
​

**Note:** For **USERNAME** and **PASSWORD**  in the abov, use your [Master API Keys](https://knowledgebase.smsglobal.com/en/articles/5181993-master-api-keys?hsLang=en-au).

​For example, 2021-06-09 15:00:00 would represent 9 June, 2021, at 3pm (AEDT).

When the message is successfully scheduled, the API will print out a delayed message ID in the format:

```
​SMSGLOBAL DELAY MSGID:1203396573
```

 

---

**Note:**

The actual SMS message IDs are only generated once the message is sent.

 

**Note:**

When [sending Unicode messages using HTTP API](https://knowledgebase.smsglobal.com/en/articles/5181812-sending-unicode-messages-using-http-api?hsLang=en-au), it is necessary to**Triple URL encode** the message to avoid any encoding issues.

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