Woocommerc rename field name in admin Order details - woocommerce

Question

How to rename of label "Phone" in admin order details and in quick view without plugin?
1) In Admin order:
2) Quick view order:

Answer 1

There are 2 solutions that i can thinkof.
First solution is to generate your own po/mo files and set phone to be w/e you want. This solution will require almost 0 maintance.
Second solution would be with coding. This also is almost 0 maintance since we will only copy/past if there are any changes. For the overwriting part if someone else have better solution lets share.
//With following filter we can override billing phone label
add_filter( 'woocommerce_admin_billing_fields' , 'order_admin_custom_fields',99,1 );
function order_admin_custom_fields( $fields ) {
$fields['phone'] = array(
'label'=> __('Mobile phone','text-domain')
);
return $fields;
}
// For quick view order is a bit more complicated since we dont have filter to use.
//So we are removing the entire template and load a new one which is copy/paste from the original.
//Location of the file is woocommerce/includes/admin/list-tables/class-wc-admin-list-table-orders.php
//The only difference is changing the phone text to whatever we want.
remove_action('admin_footer','order_preview_template');
add_action('admin_footer','order_preview_template_new');
function order_preview_template_new() {
?>
<script type="text/template" id="tmpl-wc-modal-view-order">
<div class="wc-backbone-modal wc-order-preview">
<div class="wc-backbone-modal-content">
<section class="wc-backbone-modal-main" role="main">
<header class="wc-backbone-modal-header">
<mark class="order-status status-{{ data.status }}"><span>{{ data.status_name }}</span></mark>
<?php /* translators: %s: order ID */ ?>
<h1><?php echo esc_html( sprintf( __( 'Order #%s', 'woocommerce' ), '{{ data.order_number }}' ) ); ?></h1>
<button class="modal-close modal-close-link dashicons dashicons-no-alt">
<span class="screen-reader-text"><?php esc_html_e( 'Close modal panel', 'woocommerce' ); ?></span>
</button>
</header>
<article>
<?php do_action( 'woocommerce_admin_order_preview_start' ); ?>
<div class="wc-order-preview-addresses">
<div class="wc-order-preview-address">
<h2><?php esc_html_e( 'Billing details', 'woocommerce' ); ?></h2>
{{{ data.formatted_billing_address }}}
<# if ( data.data.billing.email ) { #>
<strong><?php esc_html_e( 'Email', 'woocommerce' ); ?></strong>
{{ data.data.billing.email }}
<# } #>
<# if ( data.data.billing.phone ) { #>
<strong><?php esc_html_e( 'Mobile phone', 'text-domain' ); ?></strong>
{{ data.data.billing.phone }}
<# } #>
<# if ( data.payment_via ) { #>
<strong><?php esc_html_e( 'Payment via', 'woocommerce' ); ?></strong>
{{{ data.payment_via }}}
<# } #>
</div>
<# if ( data.needs_shipping ) { #>
<div class="wc-order-preview-address">
<h2><?php esc_html_e( 'Shipping details', 'woocommerce' ); ?></h2>
<# if ( data.ship_to_billing ) { #>
{{{ data.formatted_billing_address }}}
<# } else { #>
{{{ data.formatted_shipping_address }}}
<# } #>
<# if ( data.shipping_via ) { #>
<strong><?php esc_html_e( 'Shipping method', 'woocommerce' ); ?></strong>
{{ data.shipping_via }}
<# } #>
</div>
<# } #>
<# if ( data.data.customer_note ) { #>
<div class="wc-order-preview-note">
<strong><?php esc_html_e( 'Note', 'woocommerce' ); ?></strong>
{{ data.data.customer_note }}
</div>
<# } #>
</div>
{{{ data.item_html }}}
<?php do_action( 'woocommerce_admin_order_preview_end' ); ?>
</article>
<footer>
<div class="inner">
{{{ data.actions_html }}}
<a class="button button-primary button-large" aria-label="<?php esc_attr_e( 'Edit this order', 'woocommerce' ); ?>" href="<?php echo esc_url( admin_url( 'post.php?action=edit' ) ); ?>&post={{ data.data.id }}"><?php esc_html_e( 'Edit', 'woocommerce' ); ?></a>
</div>
</footer>
</section>
</div>
</div>
<div class="wc-backbone-modal-backdrop modal-close"></div>
</script>
<?php
}