Brian Henry

Add <code>?payment_gateway=preferred_gateway_id</code> to links in emails you send to your customers, and when they reach the 
checkout, that will be the selected payment gateway.
A WordPress filter exists so the text in the URL can be set to whatever you prefer.
<a href="https://github.com/brianhenryie/bh-wc-set-gateway-by-url/" rel="nofollow ugc">Technical detail is on GitHub</a>.

Set WooCommerce Payment Gateway by URL

Set the WooCommerce payment gateway in URLs sent to customers.

cartpauj

Shortcode Redirect sends visitors from any post or page to another URL. No settings screens, no database tables — just drop it in where you need it.
There are two ways to use it, and both produce the exact same front-end output.
1. The Redirect block (new in 1.1.0)
In the block editor, add the Redirect block from the Widgets category. The block sidebar exposes three simple fields:
<ul>
<li>Destination URL — where the visitor should end up</li>
<li>Seconds to wait — how long to pause before redirecting (<code>0</code> = immediate)</li>
<li>Show “redirecting” message — toggle the visible “Please wait…” line on or off</li>
</ul>
The editor shows a live summary of what the block will do, e.g. “Redirects to https://example.com — after 3 seconds · message shown”. No shortcode syntax to memorize.
2. The classic shortcode
Paste into any post or page:
<pre><code>[redirect url='https://example.com' sec='3']
</code></pre>
Shortcode attributes:
<ul>
<li><code>url</code> — destination URL (required)</li>
<li><code>sec</code> — seconds to wait before redirecting (optional, default <code>0</code>)</li>
<li><code>show_message</code> — set to <code>false</code>, <code>0</code>, <code>no</code>, or <code>off</code> to hide the “redirecting” message (optional, default <code>true</code>, new in 1.1.0)</li>
</ul>
Example with all three:
<pre><code>[redirect url='https://example.com' sec='5' show_message='false']
</code></pre>
Same output either way
Block or shortcode, the front-end renders the same single <code><meta http-equiv="refresh"></code> tag (plus the optional one-line message). No JavaScript. No server-side redirect. No third-party tracking. Existing <code>[redirect]</code> shortcodes from earlier versions continue to work unchanged.
<h4>Features</h4>
<ul>
<li>Block editor support — native “Redirect” block (new in 1.1.0)</li>
<li>Classic shortcode — <code>[redirect]</code> works exactly like it always has</li>
<li>Optional delay — choose how many seconds to wait before redirecting</li>
<li>Silent mode — hide the “redirecting…” message for a clean, blank-page redirect (new in 1.1.0)</li>
<li>Lightweight — a single PHP file plus a small block; no settings, no tables, no dependencies</li>
<li>Backwards compatible — upgrading from 1.0.x is drop-in</li>
</ul>

Shortcode Redirect

Redirect any post or page — with a native block or a classic shortcode. Optional delay. Optional "redirecting" message. Zero configuration.

Set WooCommerce Payment Gateway by URL vs Shortcode Redirect