diff --git a/htdocs/core/modules/modProduct.class.php b/htdocs/core/modules/modProduct.class.php
index 5a80643c38776..14e0358ea3202 100644
--- a/htdocs/core/modules/modProduct.class.php
+++ b/htdocs/core/modules/modProduct.class.php
@@ -166,6 +166,7 @@ function __construct($db)
 		if (! empty($conf->fournisseur->enabled) || !empty($conf->margin->enabled)) $this->export_fields_array[$r]=array_merge($this->export_fields_array[$r],array('p.cost_price'=>'CostPrice'));
 		if (! empty($conf->global->EXPORTTOOL_CATEGORIES)) $this->export_fields_array[$r]=array_merge($this->export_fields_array[$r],array('group_concat(cat.label)'=>'Categories'));
 		if (! empty($conf->global->MAIN_MULTILANGS)) $this->export_fields_array[$r]=array_merge($this->export_fields_array[$r],array('l.lang'=>'Language', 'l.label'=>'TranslatedLabel','l.description'=>'TranslatedDescription','l.note'=>'TranslatedNote'));
+		if (! empty($conf->global->PRODUCT_USE_UNITS)) $this->export_fields_array[$r]['p.fk_unit'] = 'Unit';
 		$this->export_TypeFields_array[$r]=array('p.ref'=>"Text",'p.label'=>"Text",'p.description'=>"Text",'p.url'=>"Text",'p.accountancy_code_sell'=>"Text",'p.accountancy_code_buy'=>"Text",'p.note'=>"Text",'p.length'=>"Numeric",'p.width'=>"Numeric",'p.height'=>"Numeric",'p.surface'=>"Numeric",'p.volume'=>"Numeric",'p.weight'=>"Numeric",'p.customcode'=>'Text','p.price_base_type'=>"Text",'p.price'=>"Numeric",'p.price_ttc'=>"Numeric",'p.tva_tx'=>'Numeric','p.tosell'=>"Boolean",'p.tobuy'=>"Boolean",'p.datec'=>'Date','p.tms'=>'Date');
 		if (! empty($conf->stock->enabled)) $this->export_TypeFields_array[$r]=array_merge($this->export_TypeFields_array[$r],array('p.stock'=>'Numeric','p.seuil_stock_alerte'=>'Numeric','p.desiredstock'=>'Numeric','p.pmp'=>'Numeric','p.cost_price'=>'Numeric'));
 		if (! empty($conf->barcode->enabled)) $this->export_TypeFields_array[$r]=array_merge($this->export_TypeFields_array[$r],array('p.barcode'=>'Text'));
@@ -264,6 +265,7 @@ function __construct($db)
 		if (! empty($conf->fournisseur->enabled) || !empty($conf->margin->enabled)) $this->import_fields_array[$r]=array_merge($this->import_fields_array[$r],array('p.cost_price'=>'CostPrice'));
 		if (is_object($mysoc) && $mysoc->useNPR()) $this->import_fields_array[$r]=array_merge($this->import_fields_array[$r],array('p.recuperableonly'=>'NPR'));
 		if (! empty($conf->barcode->enabled)) $this->import_fields_array[$r]=array_merge($this->import_fields_array[$r],array('p.barcode'=>'BarCode'));
+		if (! empty($conf->global->PRODUCT_USE_UNITS)) $this->import_fields_array[$r]['p.fk_unit'] = 'Unit';
 		// Add extra fields
 		$import_extrafield_sample=array();
 		$sql="SELECT name, label, fieldrequired FROM ".MAIN_DB_PREFIX."extrafields WHERE elementtype = 'product' AND entity IN (0, ".$conf->entity.')';
diff --git a/htdocs/core/modules/modService.class.php b/htdocs/core/modules/modService.class.php
index f9c6a608085d5..961b031e2329f 100644
--- a/htdocs/core/modules/modService.class.php
+++ b/htdocs/core/modules/modService.class.php
@@ -145,6 +145,7 @@ function __construct($db)
 		$this->export_permission[$r]=array(array("service","export"));
 		$this->export_fields_array[$r]=array('p.rowid'=>"Id",'p.ref'=>"Ref",'p.label'=>"Label",'p.description'=>"Description",'p.accountancy_code_sell'=>"ProductAccountancySellCode",'p.accountancy_code_buy'=>"ProductAccountancyBuyCode",'p.note'=>"Note",'p.price_base_type'=>"PriceBase",'p.price'=>"UnitPriceHT",'p.price_ttc'=>"UnitPriceTTC",'p.tva_tx'=>'VATRate','p.tosell'=>"OnSell",'p.tobuy'=>"OnBuy",'p.duration'=>"Duration",'p.datec'=>'DateCreation','p.tms'=>'DateModification');
 		if (! empty($conf->stock->enabled)) $this->export_fields_array[$r]=array_merge($this->export_fields_array[$r],array('p.stock'=>'Stock'));
+		if (! empty($conf->global->PRODUCT_USE_UNITS)) $this->export_fields_array[$r]['p.fk_unit'] = 'Unit';
 		//$this->export_TypeFields_array[$r]=array('p.ref'=>"Text",'p.label'=>"Text",'p.description'=>"Text",'p.accountancy_code_sell'=>"Text",'p.accountancy_code_buy'=>"Text",'p.note'=>"Text",'p.price_base_type'=>"Text",'p.price'=>"Numeric",'p.price_ttc'=>"Numeric",'p.tva_tx'=>'Numeric','p.tosell'=>"Boolean",'p.duration'=>"Duree",'p.datec'=>'Date','p.tms'=>'Date');
 		$this->export_TypeFields_array[$r]=array('p.ref'=>"Text",'p.label'=>"Text",'p.description'=>"Text",'p.accountancy_code_sell'=>"Text",'p.accountancy_code_buy'=>"Text",'p.note'=>"Text",'p.price_base_type'=>"Text",'p.price'=>"Numeric",'p.price_ttc'=>"Numeric",'p.tva_tx'=>'Numeric','p.tosell'=>"Boolean",'p.tobuy'=>"Boolean",'p.duration'=>"Duree",'p.datec'=>'Date','p.tms'=>'Date');
 		if (! empty($conf->stock->enabled)) $this->export_TypeFields_array[$r]=array_merge($this->export_TypeFields_array[$r],array('p.stock'=>'Numeric'));
@@ -240,6 +241,7 @@ function __construct($db)
 		$this->import_tables_creator_array[$r]=array('p'=>'fk_user_author');	// Fields to store import user id
         $this->import_fields_array[$r]=array('p.ref'=>"Ref*",'p.label'=>"Label*",'p.description'=>"Description",'p.url'=>"PublicUrl",'p.accountancy_code_sell'=>"ProductAccountancySellCode",'p.accountancy_code_buy'=>"ProductAccountancyBuyCode",'p.note'=>"Note",'p.length'=>"Length",'p.surface'=>"Surface",'p.volume'=>"Volume",'p.weight'=>"Weight",'p.duration'=>"Duration",'p.customcode'=>'CustomCode','p.price'=>"SellingPriceHT",'p.price_ttc'=>"SellingPriceTTC",'p.tva_tx'=>'VAT','p.tosell'=>"OnSell*",'p.tobuy'=>"OnBuy*",'p.fk_product_type'=>"Type*",'p.finished'=>'Nature','p.datec'=>'DateCreation');
 		if (! empty($conf->barcode->enabled)) $this->import_fields_array[$r]=array_merge($this->import_fields_array[$r],array('p.barcode'=>'BarCode'));
+		if (! empty($conf->global->PRODUCT_USE_UNITS)) $this->import_fields_array[$r]['p.fk_unit'] = 'Unit';
         // Add extra fields
 		$sql="SELECT name, label, fieldrequired FROM ".MAIN_DB_PREFIX."extrafields WHERE elementtype = 'product' AND entity = ".$conf->entity;
 		$resql=$this->db->query($sql);