Request – Product Button – replace for specific products

Adapting this snippet a bit, you can use custom fields to modify the button.

In this example, use the custom fields '_joinchat_woo_btn_view' and '_joinchat_woo_btn_text' to change the behavior of the Product Button:

/**
 * Change Joinchat product button with custom fields
 */
function joinchat_woobtn_custom_setting( $settings, $obj ) {

  // Exit if not is product.
  if ( ! is_singular( 'product' ) ) return $settings;

  $visibility = get_post_meta( $obj->ID, '_joinchat_woo_btn_view', true );
  $text       = get_post_meta( $obj->ID, '_joinchat_woo_btn_text', true );

  if ( 'yes' === $visibility ) {
    $settings['woo_btn_position'] = 'woocommerce_after_add_to_cart_button';
  }

  if ( 'no' === $visibility ) {
    $settings['woo_btn_position'] = 'none';
  }

  if ( $text ) {
    $settings['woo_btn_text'] = $text;
  }

  return $settings;
}
add_filter( 'joinchat_get_settings_site', 'joinchat_woobtn_custom_setting', 10, 2 );

Ok,

“Telephone” and “Message” from Joinchat metabox will be the same for product button. “Call to Action” it’s only for Joinchat chatbox, as you said but whit this code metabox CTA text will be used for product button (you can even hide Joinchat floating button and leave only product button):

/**
 * Change Joinchat product button text with metabox CTA
 */
function joinchat_woobtn_text_from_metabox_cta( $settings, $obj ) {

	$obj_settings = '';
	if ( is_singular( 'product' ) ) {
		$obj_settings = get_post_meta( $obj->ID, '_joinchat', true );
	}

	if ( is_array( $obj_settings ) && isset( $obj_settings['message_text'] ) ) {
		$settings['woo_btn_text'] = $obj_settings['message_text'];
	}

	return $settings;
}
add_filter( 'joinchat_get_settings_site', 'joinchat_woobtn_text_from_metabox_cta', 9, 2 );

I’m sorry, as the plugin is currently designed, it is complicated to put a different number to the product button and mantain global phone.

The most viable option is to use the code above and hide the floating button for products that have a number other than the general one.