diff --git a/htdocs/core/tpl/objectline_create.tpl.php b/htdocs/core/tpl/objectline_create.tpl.php
index 6fd135af821..2fffe30276a 100644
--- a/htdocs/core/tpl/objectline_create.tpl.php
+++ b/htdocs/core/tpl/objectline_create.tpl.php
@@ -636,11 +636,15 @@ if (!empty($usemargins) && $user->rights->margins->creer)
 			{
 				console.log("We are in a price per qty context, we do not call ajax/product");
 			} else {
+				<?php if (! empty($conf->global->PRODUIT_CUSTOMER_PRICES_BY_QTY) || ! empty($conf->global->PRODUIT_CUSTOMER_PRICES_BY_QTY_MULTIPRICES)) { ?>
+					if (isNaN(pbq)) { console.log("We use experimental option PRODUIT_CUSTOMER_PRICES_BY_QTY or PRODUIT_CUSTOMER_PRICES_BY_QTY but we are not yet able to get the id of pbq from product combo list, so load of price may be 0 if product has differet prices"); }
+				<?php } ?>
 				// Get the HT price for the product and display it
-				console.log("Load price without tax and set it into #price_ht for id="+$(this).val()+" socid=<?php print $object->socid; ?>");
+				console.log("Load unit price without tax and set it into #price_ht for product id="+$(this).val()+" socid=<?php print $object->socid; ?>");
 				$.post('<?php echo DOL_URL_ROOT; ?>/product/ajax/products.php?action=fetch',
 					{ 'id': $(this).val(), 'socid': <?php print $object->socid; ?> },
 					function(data) {
+						console.log("Load unit price end, we got value "+data.price_ht);
 						jQuery("#price_ht").val(data.price_ht);
 					},
 					'json'
@@ -658,95 +662,96 @@ if (!empty($usemargins) && $user->rights->margins->creer)
 			$("#fournprice_predef").find("option").remove();
 			$("#fournprice_predef").hide();
 			$("#buying_price").val("").show();
+
 			/* Call post to load content of combo list fournprice_predef */
 			$.post('<?php echo DOL_URL_ROOT; ?>/fourn/ajax/getSupplierPrices.php?bestpricefirst=1', { 'idprod': $(this).val() }, function(data) {
-			if (data && data.length > 0)
-			{
-			var options = ''; var defaultkey = ''; var defaultprice = ''; var bestpricefound = 0;
-
-			var bestpriceid = 0; var bestpricevalue = 0;
-			var pmppriceid = 0; var pmppricevalue = 0;
-			var costpriceid = 0; var costpricevalue = 0;
-
-			/* setup of margin calculation */
-			var defaultbuyprice = '<?php
-			if (isset($conf->global->MARGIN_TYPE))
-			{
-				if ($conf->global->MARGIN_TYPE == '1')   print 'bestsupplierprice';
-				if ($conf->global->MARGIN_TYPE == 'pmp') print 'pmp';
-				if ($conf->global->MARGIN_TYPE == 'costprice') print 'costprice';
-			} ?>';
-			console.log("we will set the field for margin. defaultbuyprice="+defaultbuyprice);
-
-			var i = 0;
-			$(data).each(function() {
-				/* Warning: Lines must be processed in order: best supplier price, then pmpprice line then costprice */
-				if (this.id != 'pmpprice' && this.id != 'costprice')
+				if (data && data.length > 0)
 				{
-					i++;
-					this.price = parseFloat(this.price); // to fix when this.price >0
-					// If margin is calculated on best supplier price, we set it by defaut (but only if value is not 0)
-					//console.log("id="+this.id+"-price="+this.price+"-"+(this.price > 0));
-					if (bestpricefound == 0 && this.price > 0) { defaultkey = this.id; defaultprice = this.price; bestpriceid = this.id; bestpricevalue = this.price; bestpricefound=1; }	// bestpricefound is used to take the first price > 0
-				}
-				if (this.id == 'pmpprice')
-				{
-					// If margin is calculated on PMP, we set it by defaut (but only if value is not 0)
-					console.log("id="+this.id+"-price="+this.price);
-					if ('pmp' == defaultbuyprice || 'costprice' == defaultbuyprice)
+					var options = ''; var defaultkey = ''; var defaultprice = ''; var bestpricefound = 0;
+
+					var bestpriceid = 0; var bestpricevalue = 0;
+					var pmppriceid = 0; var pmppricevalue = 0;
+					var costpriceid = 0; var costpricevalue = 0;
+
+					/* setup of margin calculation */
+					var defaultbuyprice = '<?php
+					if (isset($conf->global->MARGIN_TYPE))
 					{
-						if (this.price > 0) {
-							defaultkey = this.id; defaultprice = this.price; pmppriceid = this.id; pmppricevalue = this.price;
-							//console.log("pmppricevalue="+pmppricevalue);
+						if ($conf->global->MARGIN_TYPE == '1')   print 'bestsupplierprice';
+						if ($conf->global->MARGIN_TYPE == 'pmp') print 'pmp';
+						if ($conf->global->MARGIN_TYPE == 'costprice') print 'costprice';
+					} ?>';
+					console.log("we will set the field for margin. defaultbuyprice="+defaultbuyprice);
+
+					var i = 0;
+					$(data).each(function() {
+						/* Warning: Lines must be processed in order: best supplier price, then pmpprice line then costprice */
+						if (this.id != 'pmpprice' && this.id != 'costprice')
+						{
+							i++;
+							this.price = parseFloat(this.price); // to fix when this.price >0
+							// If margin is calculated on best supplier price, we set it by defaut (but only if value is not 0)
+							//console.log("id="+this.id+"-price="+this.price+"-"+(this.price > 0));
+							if (bestpricefound == 0 && this.price > 0) { defaultkey = this.id; defaultprice = this.price; bestpriceid = this.id; bestpricevalue = this.price; bestpricefound=1; }	// bestpricefound is used to take the first price > 0
 						}
-					}
-				}
-				if (this.id == 'costprice')
-				{
-					// If margin is calculated on Cost price, we set it by defaut (but only if value is not 0)
-					console.log("id="+this.id+"-price="+this.price+"-pmppricevalue="+pmppricevalue);
-					if ('costprice' == defaultbuyprice)
+						if (this.id == 'pmpprice')
+						{
+							// If margin is calculated on PMP, we set it by defaut (but only if value is not 0)
+							console.log("id="+this.id+"-price="+this.price);
+							if ('pmp' == defaultbuyprice || 'costprice' == defaultbuyprice)
+							{
+								if (this.price > 0) {
+									defaultkey = this.id; defaultprice = this.price; pmppriceid = this.id; pmppricevalue = this.price;
+									//console.log("pmppricevalue="+pmppricevalue);
+								}
+							}
+						}
+						if (this.id == 'costprice')
+						{
+							// If margin is calculated on Cost price, we set it by defaut (but only if value is not 0)
+							console.log("id="+this.id+"-price="+this.price+"-pmppricevalue="+pmppricevalue);
+							if ('costprice' == defaultbuyprice)
+							{
+								if (this.price > 0) { defaultkey = this.id; defaultprice = this.price; costpriceid = this.id; costpricevalue = this.price; }
+								else if (pmppricevalue > 0) { defaultkey = 'pmpprice'; defaultprice = pmppricevalue; }
+							}
+						}
+						options += '<option value="'+this.id+'" price="'+this.price+'">'+this.label+'</option>';
+					});
+					options += '<option value="inputprice" price="'+defaultprice+'"><?php echo $langs->trans("InputPrice"); ?></option>';
+
+					console.log("finally selected defaultkey="+defaultkey+" defaultprice for buying price="+defaultprice);
+
+					$("#fournprice_predef").html(options).show();
+					if (defaultkey != '')
 					{
-						if (this.price > 0) { defaultkey = this.id; defaultprice = this.price; costpriceid = this.id; costpricevalue = this.price; }
-						else if (pmppricevalue > 0) { defaultkey = 'pmpprice'; defaultprice = pmppricevalue; }
+						$("#fournprice_predef").val(defaultkey);
 					}
+
+					/* At loading, no product are yet selected, so we hide field of buying_price */
+					$("#buying_price").hide();
+
+					/* Define default price at loading */
+					var defaultprice = $("#fournprice_predef").find('option:selected').attr("price");
+					$("#buying_price").val(defaultprice);
+
+					$("#fournprice_predef").change(function() {
+						console.log("change on fournprice_predef");
+						/* Hide field buying_price according to choice into list (if 'inputprice' or not) */
+						var linevalue=$(this).find('option:selected').val();
+						var pricevalue = $(this).find('option:selected').attr("price");
+						if (linevalue != 'inputprice' && linevalue != 'pmpprice') {
+							$("#buying_price").val(pricevalue).hide();	/* We set value then hide field */
+						}
+						if (linevalue == 'inputprice') {
+							$('#buying_price').show();
+						}
+						if (linevalue == 'pmpprice') {
+							$("#buying_price").val(pricevalue);
+							$('#buying_price').hide();
+						}
+					});
 				}
-				options += '<option value="'+this.id+'" price="'+this.price+'">'+this.label+'</option>';
-			});
-			options += '<option value="inputprice" price="'+defaultprice+'"><?php echo $langs->trans("InputPrice"); ?></option>';
-
-			console.log("finally selected defaultkey="+defaultkey+" defaultprice="+defaultprice);
-
-			$("#fournprice_predef").html(options).show();
-			if (defaultkey != '')
-			{
-				$("#fournprice_predef").val(defaultkey);
-			}
-
-			/* At loading, no product are yet selected, so we hide field of buying_price */
-			$("#buying_price").hide();
-
-			/* Define default price at loading */
-			var defaultprice = $("#fournprice_predef").find('option:selected').attr("price");
-			$("#buying_price").val(defaultprice);
-
-			$("#fournprice_predef").change(function() {
-			console.log("change on fournprice_predef");
-			/* Hide field buying_price according to choice into list (if 'inputprice' or not) */
-			var linevalue=$(this).find('option:selected').val();
-			var pricevalue = $(this).find('option:selected').attr("price");
-			if (linevalue != 'inputprice' && linevalue != 'pmpprice') {
-			$("#buying_price").val(pricevalue).hide();	/* We set value then hide field */
-			}
-			if (linevalue == 'inputprice') {
-			$('#buying_price').show();
-			}
-			if (linevalue == 'pmpprice') {
-			$("#buying_price").val(pricevalue);
-			$('#buying_price').hide();
-			}
-			});
-			}
 			},
 			'json');