Index: NVDataMgmtHDRecords.h
===================================================================
diff -u -r75f09f06b74c6c3b0ba67aeff6ade92fa35426d0 -rbdcb684d0519521e50bbc44e6ac276d4d851825e
--- NVDataMgmtHDRecords.h	(.../NVDataMgmtHDRecords.h)	(revision 75f09f06b74c6c3b0ba67aeff6ade92fa35426d0)
+++ NVDataMgmtHDRecords.h	(.../NVDataMgmtHDRecords.h)	(revision bdcb684d0519521e50bbc44e6ac276d4d851825e)
@@ -33,7 +33,7 @@
 // ********** public definitions **********
 
 #define MAX_TOP_LEVEL_PN_CHARS 10U                                                                             ///< Max number of characters for top level part number.
-#define MAX_TOP_LEVEL_SN_CHARS 15U                                                                             ///< Max number of characters for top level serial number.
+#define MAX_TOP_LEVEL_SN_CHARS 20U                                                                             ///< Max number of characters for top level serial number.
 
 #ifndef _RELEASE_
 /// Software configuration enums