diff --git a/htdocs/accountancy/admin/productaccount.php b/htdocs/accountancy/admin/productaccount.php
index b3d6ac87780..0cd39995545 100644
--- a/htdocs/accountancy/admin/productaccount.php
+++ b/htdocs/accountancy/admin/productaccount.php
@@ -266,18 +266,18 @@ $aarowid_prodsell           = $accounting->fetch('', $conf->global->ACCOUNTING_P
 $aarowid_prodsell_intra     = $accounting->fetch('', $conf->global->ACCOUNTING_PRODUCT_SOLD_INTRA_ACCOUNT, 1);
 $aarowid_prodsell_export    = $accounting->fetch('', $conf->global->ACCOUNTING_PRODUCT_SOLD_EXPORT_ACCOUNT, 1);
 
-$aacompta_servbuy           = (!empty($conf->global->ACCOUNTING_SERVICE_BUY_ACCOUNT) ? $conf->global->ACCOUNTING_SERVICE_BUY_ACCOUNT : $langs->trans("CodeNotDef"));
-$aacompta_servbuy_intra     = (!empty($conf->global->ACCOUNTING_SERVICE_BUY_INTRA_ACCOUNT) ? $conf->global->ACCOUNTING_SERVICE_BUY_INTRA_ACCOUNT : $langs->trans("CodeNotDef"));
-$aacompta_servbuy_export    = (!empty($conf->global->ACCOUNTING_SERVICE_BUY_EXPORT_ACCOUNT) ? $conf->global->ACCOUNTING_SERVICE_BUY_EXPORT_ACCOUNT : $langs->trans("CodeNotDef"));
-$aacompta_prodbuy           = (!empty($conf->global->ACCOUNTING_PRODUCT_BUY_ACCOUNT) ? $conf->global->ACCOUNTING_PRODUCT_BUY_ACCOUNT : $langs->trans("CodeNotDef"));
-$aacompta_prodbuy_intra     = (!empty($conf->global->ACCOUNTING_PRODUCT_BUY_INTRA_ACCOUNT) ? $conf->global->ACCOUNTING_PRODUCT_BUY_INTRA_ACCOUNT : $langs->trans("CodeNotDef"));
-$aacompta_prodbuy_export    = (!empty($conf->global->ACCOUNTING_PRODUCT_BUY_EXPORT_ACCOUNT) ? $conf->global->ACCOUNTING_PRODUCT_BUY_EXPORT_ACCOUNT : $langs->trans("CodeNotDef"));
-$aacompta_servsell          = (!empty($conf->global->ACCOUNTING_SERVICE_SOLD_ACCOUNT) ? $conf->global->ACCOUNTING_SERVICE_SOLD_ACCOUNT : $langs->trans("CodeNotDef"));
-$aacompta_servsell_intra    = (!empty($conf->global->ACCOUNTING_SERVICE_SOLD_INTRA_ACCOUNT) ? $conf->global->ACCOUNTING_SERVICE_SOLD_INTRA_ACCOUNT : $langs->trans("CodeNotDef"));
-$aacompta_servsell_export   = (!empty($conf->global->ACCOUNTING_SERVICE_SOLD_EXPORT_ACCOUNT) ? $conf->global->ACCOUNTING_SERVICE_SOLD_EXPORT_ACCOUNT : $langs->trans("CodeNotDef"));
-$aacompta_prodsell          = (!empty($conf->global->ACCOUNTING_PRODUCT_SOLD_ACCOUNT) ? $conf->global->ACCOUNTING_PRODUCT_SOLD_ACCOUNT : $langs->trans("CodeNotDef"));
-$aacompta_prodsell_intra    = (!empty($conf->global->ACCOUNTING_PRODUCT_SOLD_INTRA_ACCOUNT) ? $conf->global->ACCOUNTING_PRODUCT_SOLD_INTRA_ACCOUNT : $langs->trans("CodeNotDef"));
-$aacompta_prodsell_export   = (!empty($conf->global->ACCOUNTING_PRODUCT_SOLD_EXPORT_ACCOUNT) ? $conf->global->ACCOUNTING_PRODUCT_SOLD_EXPORT_ACCOUNT : $langs->trans("CodeNotDef"));
+$aacompta_servbuy           = getDolGlobalString('ACCOUNTING_SERVICE_BUY_ACCOUNT', $langs->trans("CodeNotDef"));
+$aacompta_servbuy_intra     = getDolGlobalString('ACCOUNTING_SERVICE_BUY_INTRA_ACCOUNT', $langs->trans("CodeNotDef"));
+$aacompta_servbuy_export    = getDolGlobalString('ACCOUNTING_SERVICE_BUY_EXPORT_ACCOUNT', $langs->trans("CodeNotDef"));
+$aacompta_prodbuy           = getDolGlobalString('ACCOUNTING_PRODUCT_BUY_ACCOUNT', $langs->trans("CodeNotDef"));
+$aacompta_prodbuy_intra     = getDolGlobalString('ACCOUNTING_PRODUCT_BUY_INTRA_ACCOUNT', $langs->trans("CodeNotDef"));
+$aacompta_prodbuy_export    = getDolGlobalString('ACCOUNTING_PRODUCT_BUY_EXPORT_ACCOUNT', $langs->trans("CodeNotDef"));
+$aacompta_servsell          = getDolGlobalString('ACCOUNTING_SERVICE_SOLD_ACCOUNT', $langs->trans("CodeNotDef"));
+$aacompta_servsell_intra    = getDolGlobalString('ACCOUNTING_SERVICE_SOLD_INTRA_ACCOUNT', $langs->trans("CodeNotDef"));
+$aacompta_servsell_export   = getDolGlobalString('ACCOUNTING_SERVICE_SOLD_EXPORT_ACCOUNT', $langs->trans("CodeNotDef"));
+$aacompta_prodsell          = getDolGlobalString('ACCOUNTING_PRODUCT_SOLD_ACCOUNT', $langs->trans("CodeNotDef"));
+$aacompta_prodsell_intra    = getDolGlobalString('ACCOUNTING_PRODUCT_SOLD_INTRA_ACCOUNT', $langs->trans("CodeNotDef"));
+$aacompta_prodsell_export   = getDolGlobalString('ACCOUNTING_PRODUCT_SOLD_EXPORT_ACCOUNT', $langs->trans("CodeNotDef"));
 
 llxHeader('', $langs->trans("ProductsBinding"));
 
diff --git a/htdocs/core/lib/functions.lib.php b/htdocs/core/lib/functions.lib.php
index 98a879410b0..2021976793f 100644
--- a/htdocs/core/lib/functions.lib.php
+++ b/htdocs/core/lib/functions.lib.php
@@ -44,25 +44,27 @@ include_once DOL_DOCUMENT_ROOT.'/core/lib/json.lib.php';
 /**
  * Return dolibarr global constant string value
  * @param string $key key to return value, return '' if not set
+ * @param string $default value to return
  * @return string
  */
-function getDolGlobalString($key)
+function getDolGlobalString($key, $default = '')
 {
 	global $conf;
 	// return $conf->global->$key ?? '';
-	return (string) (empty($conf->global->$key) ? '' : $conf->global->$key);
+	return (string) (empty($conf->global->$key) ? $default : $conf->global->$key);
 }
 
 /**
  * Return dolibarr global constant int value
  * @param string $key key to return value, return 0 if not set
+ * @param int $default value to return
  * @return int
  */
-function getDolGlobalInt($key)
+function getDolGlobalInt($key, $default = 0)
 {
 	global $conf;
-	// return $conf->global->$key ?? 0;
-	return (int) (empty($conf->global->$key) ? 0 : $conf->global->$key);
+	// return $conf->global->$key ?? $default;
+	return (int) (empty($conf->global->$key) ? $default : $conf->global->$key);
 }
 
 /**