diff --git a/htdocs/core/class/html.form.class.php b/htdocs/core/class/html.form.class.php
index bf52ff5871a..59f98e626a9 100644
--- a/htdocs/core/class/html.form.class.php
+++ b/htdocs/core/class/html.form.class.php
@@ -2137,8 +2137,8 @@ class Form
 		if (!empty($conf->global->PRODUIT_CUSTOMER_PRICES) && !empty($socid))
 		{
 			$sql .= ', pcp.rowid as idprodcustprice, pcp.price as custprice, pcp.price_ttc as custprice_ttc,';
-			$sql .= ' pcp.price_base_type as custprice_base_type, pcp.tva_tx as custtva_tx';
-			$selectFields .= ", idprodcustprice, custprice, custprice_ttc, custprice_base_type, custtva_tx";
+			$sql .= ' pcp.price_base_type as custprice_base_type, pcp.tva_tx as custtva_tx, pcp.ref_customer as custref';
+			$selectFields .= ", idprodcustprice, custprice, custprice_ttc, custprice_base_type, custtva_tx, custref";
 		}
 		// Units
 		if (!empty($conf->global->PRODUCT_USE_UNITS)) {
@@ -2235,6 +2235,7 @@ class Form
 				if ($i > 0) $sql .= " AND ";
 				$sql .= "(p.ref LIKE '".$this->db->escape($prefix.$crit)."%' OR p.label LIKE '".$this->db->escape($prefix.$crit)."%'";
 				if (!empty($conf->global->MAIN_MULTILANGS)) $sql .= " OR pl.label LIKE '".$this->db->escape($prefix.$crit)."%'";
+				if (!empty($conf->global->PRODUIT_CUSTOMER_PRICES) && ! empty($socid)) $sql .= " OR pcp.ref_customer LIKE '".$this->db->escape($prefix.$crit)."%'";
 				if (!empty($conf->global->PRODUCT_AJAX_SEARCH_ON_DESCRIPTION))
 				{
 					$sql .= " OR p.description LIKE '".$this->db->escape($prefix.$crit)."%'";
@@ -2422,6 +2423,7 @@ class Form
 
 		$outkey = $objp->rowid;
 		$outref = $objp->ref;
+		$outrefcust = empty($objp->custref) ? '' : $objp->custref;
 		$outlabel = $objp->label;
 		$outdesc = $objp->description;
 		$outbarcode = $objp->barcode;
@@ -2487,11 +2489,13 @@ class Form
 		}
 		$opt .= '>';
 		$opt .= $objp->ref;
+		if (! empty($objp->custref)) $opt.= ' (' . $objp->custref . ')';
 		if ($outbarcode) $opt .= ' ('.$outbarcode.')';
 		$opt .= ' - '.dol_trunc($label, $maxlengtharticle);
 		if ($outorigin && !empty($conf->global->PRODUCT_SHOW_ORIGIN_IN_COMBO)) $opt .= ' ('.getCountry($outorigin, 1).')';
 
 		$objRef = $objp->ref;
+		if (! empty($objp->custref)) $objRef .= ' (' . $objp->custref . ')';
 		if (!empty($filterkey) && $filterkey != '') $objRef = preg_replace('/('.preg_quote($filterkey, '/').')/i', '<strong>$1</strong>', $objRef, 1);
 		$outval .= $objRef;
 		if ($outbarcode) $outval .= ' ('.$outbarcode.')';
@@ -2655,7 +2659,7 @@ class Form
 		}
 
 		$opt .= "</option>\n";
-		$optJson = array('key'=>$outkey, 'value'=>$outref, 'label'=>$outval, 'label2'=>$outlabel, 'desc'=>$outdesc, 'type'=>$outtype, 'price_ht'=>price2num($outprice_ht), 'price_ttc'=>price2num($outprice_ttc), 'pricebasetype'=>$outpricebasetype, 'tva_tx'=>$outtva_tx, 'qty'=>$outqty, 'discount'=>$outdiscount, 'duration_value'=>$outdurationvalue, 'duration_unit'=>$outdurationunit, 'pbq'=>$outpbq);
+		$optJson = array('key'=>$outkey, 'value'=>$outref, 'label'=>$outval, 'label2'=>$outlabel, 'desc'=>$outdesc, 'type'=>$outtype, 'price_ht'=>price2num($outprice_ht), 'price_ttc'=>price2num($outprice_ttc), 'pricebasetype'=>$outpricebasetype, 'tva_tx'=>$outtva_tx, 'qty'=>$outqty, 'discount'=>$outdiscount, 'duration_value'=>$outdurationvalue, 'duration_unit'=>$outdurationunit, 'pbq'=>$outpbq, 'ref_customer'=>$outrefcust);
 	}
 
 	// phpcs:disable PEAR.NamingConventions.ValidFunctionName.ScopeNotCamelCaps
diff --git a/htdocs/core/lib/ajax.lib.php b/htdocs/core/lib/ajax.lib.php
index 10fa477600a..0c7a8ecc312 100644
--- a/htdocs/core/lib/ajax.lib.php
+++ b/htdocs/core/lib/ajax.lib.php
@@ -134,7 +134,7 @@ function ajax_autocompleter($selected, $htmlname, $url, $urloption = '', $minLen
 										}
 										return { label: label, value: item.value, id: item.key, disabled: item.disabled,
 												 update: update, textarea: textarea,
-												 pbq: item.pbq, type: item.type, qty: item.qty, discount: item.discount, pricebasetype: item.pricebasetype, price_ht: item.price_ht, price_ttc: item.price_ttc }
+												 pbq: item.pbq, type: item.type, qty: item.qty, discount: item.discount, pricebasetype: item.pricebasetype, price_ht: item.price_ht, price_ttc: item.price_ttc, ref_customer: item.ref_customer }
 									}));
 								}
 								else console.error("Error: Ajax url '.$url.($urloption ? '?'.$urloption : '').' has returned an empty page. Should be an empty json array.");
@@ -152,6 +152,7 @@ function ajax_autocompleter($selected, $htmlname, $url, $urloption = '', $minLen
 							$("#'.$htmlname.'").attr("data-pbqbase", ui.item.pricebasetype);
 							$("#'.$htmlname.'").attr("data-pbqqty", ui.item.qty);
 							$("#'.$htmlname.'").attr("data-pbqpercent", ui.item.discount);
+							$("#'.$htmlname.'").attr("data-ref-customer", ui.item.ref_customer);
 
     						$("#'.$htmlname.'").val(ui.item.id).trigger("change");	// Select new value
     						// Disable an element