diff --git a/qga/qapi-schema.json b/qga/qapi-schema.json
index b720dd4379..51683f4dc2 100644
--- a/qga/qapi-schema.json
+++ b/qga/qapi-schema.json
@@ -6,8 +6,9 @@
 #
 # "unsupported" is a higher-level error than the errors that
 # individual commands might document.  The caller should always be
-# prepared to receive QERR_UNSUPPORTED, even if the given command
-# doesn't specify it, or doesn't document any failure mode at all.
+# prepared to receive the "this feature or command is not currently supported"
+# message, even if the given command doesn't specify it, or doesn't document
+# any failure mode at all.
 ##
 
 ##
diff --git a/include/qapi/qmp/qerror.h b/include/qapi/qmp/qerror.h
index 840831cc6a..7606f4525d 100644
--- a/include/qapi/qmp/qerror.h
+++ b/include/qapi/qmp/qerror.h
@@ -17,7 +17,4 @@
  * add new ones!
  */
 
-#define QERR_UNSUPPORTED \
-    "this feature or command is not currently supported"
-
 #endif /* QERROR_H */
diff --git a/qga/commands-bsd.c b/qga/commands-bsd.c
index 17bddda1cf..11536f148f 100644
--- a/qga/commands-bsd.c
+++ b/qga/commands-bsd.c
@@ -152,25 +152,25 @@ int qmp_guest_fsfreeze_do_thaw(Error **errp)
 
 GuestFilesystemInfoList *qmp_guest_get_fsinfo(Error **errp)
 {
-    error_setg(errp, QERR_UNSUPPORTED);
+    error_setg(errp, "this feature or command is not currently supported");
     return NULL;
 }
 
 GuestDiskInfoList *qmp_guest_get_disks(Error **errp)
 {
-    error_setg(errp, QERR_UNSUPPORTED);
+    error_setg(errp, "this feature or command is not currently supported");
     return NULL;
 }
 
 GuestDiskStatsInfoList *qmp_guest_get_diskstats(Error **errp)
 {
-    error_setg(errp, QERR_UNSUPPORTED);
+    error_setg(errp, "this feature or command is not currently supported");
     return NULL;
 }
 
 GuestCpuStatsList *qmp_guest_get_cpustats(Error **errp)
 {
-    error_setg(errp, QERR_UNSUPPORTED);
+    error_setg(errp, "this feature or command is not currently supported");
     return NULL;
 }
 #endif /* CONFIG_FSFREEZE */
diff --git a/qga/commands-posix.c b/qga/commands-posix.c
index 6169bbf7a0..f510add366 100644
--- a/qga/commands-posix.c
+++ b/qga/commands-posix.c
@@ -165,7 +165,7 @@ void qmp_guest_set_time(bool has_time, int64_t time_ns, Error **errp)
     }
 
     if (!hwclock_available) {
-        error_setg(errp, QERR_UNSUPPORTED);
+        error_setg(errp, "this feature or command is not currently supported");
         return;
     }
 
@@ -1540,7 +1540,7 @@ GuestDiskInfoList *qmp_guest_get_disks(Error **errp)
 
 GuestDiskInfoList *qmp_guest_get_disks(Error **errp)
 {
-    error_setg(errp, QERR_UNSUPPORTED);
+    error_setg(errp, "this feature or command is not currently supported");
     return NULL;
 }
 
@@ -2235,7 +2235,7 @@ void qmp_guest_set_user_password(const char *username,
                                  bool crypted,
                                  Error **errp)
 {
-    error_setg(errp, QERR_UNSUPPORTED);
+    error_setg(errp, "this feature or command is not currently supported");
 }
 #endif /* __linux__ || __FreeBSD__ */
 
@@ -2751,47 +2751,47 @@ GuestCpuStatsList *qmp_guest_get_cpustats(Error **errp)
 
 void qmp_guest_suspend_disk(Error **errp)
 {
-    error_setg(errp, QERR_UNSUPPORTED);
+    error_setg(errp, "this feature or command is not currently supported");
 }
 
 void qmp_guest_suspend_ram(Error **errp)
 {
-    error_setg(errp, QERR_UNSUPPORTED);
+    error_setg(errp, "this feature or command is not currently supported");
 }
 
 void qmp_guest_suspend_hybrid(Error **errp)
 {
-    error_setg(errp, QERR_UNSUPPORTED);
+    error_setg(errp, "this feature or command is not currently supported");
 }
 
 GuestLogicalProcessorList *qmp_guest_get_vcpus(Error **errp)
 {
-    error_setg(errp, QERR_UNSUPPORTED);
+    error_setg(errp, "this feature or command is not currently supported");
     return NULL;
 }
 
 int64_t qmp_guest_set_vcpus(GuestLogicalProcessorList *vcpus, Error **errp)
 {
-    error_setg(errp, QERR_UNSUPPORTED);
+    error_setg(errp, "this feature or command is not currently supported");
     return -1;
 }
 
 GuestMemoryBlockList *qmp_guest_get_memory_blocks(Error **errp)
 {
-    error_setg(errp, QERR_UNSUPPORTED);
+    error_setg(errp, "this feature or command is not currently supported");
     return NULL;
 }
 
 GuestMemoryBlockResponseList *
 qmp_guest_set_memory_blocks(GuestMemoryBlockList *mem_blks, Error **errp)
 {
-    error_setg(errp, QERR_UNSUPPORTED);
+    error_setg(errp, "this feature or command is not currently supported");
     return NULL;
 }
 
 GuestMemoryBlockInfo *qmp_guest_get_memory_block_info(Error **errp)
 {
-    error_setg(errp, QERR_UNSUPPORTED);
+    error_setg(errp, "this feature or command is not currently supported");
     return NULL;
 }
 
@@ -3056,7 +3056,7 @@ error:
 
 GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp)
 {
-    error_setg(errp, QERR_UNSUPPORTED);
+    error_setg(errp, "this feature or command is not currently supported");
     return NULL;
 }
 
@@ -3066,20 +3066,20 @@ GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp)
 
 GuestFilesystemInfoList *qmp_guest_get_fsinfo(Error **errp)
 {
-    error_setg(errp, QERR_UNSUPPORTED);
+    error_setg(errp, "this feature or command is not currently supported");
     return NULL;
 }
 
 GuestFsfreezeStatus qmp_guest_fsfreeze_status(Error **errp)
 {
-    error_setg(errp, QERR_UNSUPPORTED);
+    error_setg(errp, "this feature or command is not currently supported");
 
     return 0;
 }
 
 int64_t qmp_guest_fsfreeze_freeze(Error **errp)
 {
-    error_setg(errp, QERR_UNSUPPORTED);
+    error_setg(errp, "this feature or command is not currently supported");
 
     return 0;
 }
@@ -3088,33 +3088,33 @@ int64_t qmp_guest_fsfreeze_freeze_list(bool has_mountpoints,
                                        strList *mountpoints,
                                        Error **errp)
 {
-    error_setg(errp, QERR_UNSUPPORTED);
+    error_setg(errp, "this feature or command is not currently supported");
 
     return 0;
 }
 
 int64_t qmp_guest_fsfreeze_thaw(Error **errp)
 {
-    error_setg(errp, QERR_UNSUPPORTED);
+    error_setg(errp, "this feature or command is not currently supported");
 
     return 0;
 }
 
 GuestDiskInfoList *qmp_guest_get_disks(Error **errp)
 {
-    error_setg(errp, QERR_UNSUPPORTED);
+    error_setg(errp, "this feature or command is not currently supported");
     return NULL;
 }
 
 GuestDiskStatsInfoList *qmp_guest_get_diskstats(Error **errp)
 {
-    error_setg(errp, QERR_UNSUPPORTED);
+    error_setg(errp, "this feature or command is not currently supported");
     return NULL;
 }
 
 GuestCpuStatsList *qmp_guest_get_cpustats(Error **errp)
 {
-    error_setg(errp, QERR_UNSUPPORTED);
+    error_setg(errp, "this feature or command is not currently supported");
     return NULL;
 }
 
@@ -3124,7 +3124,7 @@ GuestCpuStatsList *qmp_guest_get_cpustats(Error **errp)
 GuestFilesystemTrimResponse *
 qmp_guest_fstrim(bool has_minimum, int64_t minimum, Error **errp)
 {
-    error_setg(errp, QERR_UNSUPPORTED);
+    error_setg(errp, "this feature or command is not currently supported");
     return NULL;
 }
 #endif
@@ -3243,7 +3243,7 @@ GuestUserList *qmp_guest_get_users(Error **errp)
 
 GuestUserList *qmp_guest_get_users(Error **errp)
 {
-    error_setg(errp, QERR_UNSUPPORTED);
+    error_setg(errp, "this feature or command is not currently supported");
     return NULL;
 }
 
@@ -3386,7 +3386,7 @@ GuestOSInfo *qmp_guest_get_osinfo(Error **errp)
 
 GuestDeviceInfoList *qmp_guest_get_devices(Error **errp)
 {
-    error_setg(errp, QERR_UNSUPPORTED);
+    error_setg(errp, "this feature or command is not currently supported");
 
     return NULL;
 }
diff --git a/qga/commands-win32.c b/qga/commands-win32.c
index aa8c9770d4..5c9f8e0923 100644
--- a/qga/commands-win32.c
+++ b/qga/commands-win32.c
@@ -1213,7 +1213,7 @@ GuestFilesystemInfoList *qmp_guest_get_fsinfo(Error **errp)
 GuestFsfreezeStatus qmp_guest_fsfreeze_status(Error **errp)
 {
     if (!vss_initialized()) {
-        error_setg(errp, QERR_UNSUPPORTED);
+        error_setg(errp, "this feature or command is not currently supported");
         return 0;
     }
 
@@ -1241,7 +1241,7 @@ int64_t qmp_guest_fsfreeze_freeze_list(bool has_mountpoints,
     Error *local_err = NULL;
 
     if (!vss_initialized()) {
-        error_setg(errp, QERR_UNSUPPORTED);
+        error_setg(errp, "this feature or command is not currently supported");
         return 0;
     }
 
@@ -1276,7 +1276,7 @@ int64_t qmp_guest_fsfreeze_thaw(Error **errp)
     int i;
 
     if (!vss_initialized()) {
-        error_setg(errp, QERR_UNSUPPORTED);
+        error_setg(errp, "this feature or command is not currently supported");
         return 0;
     }
 
@@ -1509,7 +1509,7 @@ out:
 
 void qmp_guest_suspend_hybrid(Error **errp)
 {
-    error_setg(errp, QERR_UNSUPPORTED);
+    error_setg(errp, "this feature or command is not currently supported");
 }
 
 static IP_ADAPTER_ADDRESSES *guest_get_adapters_addresses(Error **errp)
@@ -1877,7 +1877,7 @@ GuestLogicalProcessorList *qmp_guest_get_vcpus(Error **errp)
 
 int64_t qmp_guest_set_vcpus(GuestLogicalProcessorList *vcpus, Error **errp)
 {
-    error_setg(errp, QERR_UNSUPPORTED);
+    error_setg(errp, "this feature or command is not currently supported");
     return -1;
 }
 
@@ -1938,7 +1938,7 @@ void qmp_guest_set_user_password(const char *username,
     GError *gerr = NULL;
 
     if (crypted) {
-        error_setg(errp, QERR_UNSUPPORTED);
+        error_setg(errp, "this feature or command is not currently supported");
         return;
     }
 
@@ -1983,20 +1983,20 @@ done:
 
 GuestMemoryBlockList *qmp_guest_get_memory_blocks(Error **errp)
 {
-    error_setg(errp, QERR_UNSUPPORTED);
+    error_setg(errp, "this feature or command is not currently supported");
     return NULL;
 }
 
 GuestMemoryBlockResponseList *
 qmp_guest_set_memory_blocks(GuestMemoryBlockList *mem_blks, Error **errp)
 {
-    error_setg(errp, QERR_UNSUPPORTED);
+    error_setg(errp, "this feature or command is not currently supported");
     return NULL;
 }
 
 GuestMemoryBlockInfo *qmp_guest_get_memory_block_info(Error **errp)
 {
-    error_setg(errp, QERR_UNSUPPORTED);
+    error_setg(errp, "this feature or command is not currently supported");
     return NULL;
 }
 
@@ -2522,12 +2522,12 @@ char *qga_get_host_name(Error **errp)
 
 GuestDiskStatsInfoList *qmp_guest_get_diskstats(Error **errp)
 {
-    error_setg(errp, QERR_UNSUPPORTED);
+    error_setg(errp, "this feature or command is not currently supported");
     return NULL;
 }
 
 GuestCpuStatsList *qmp_guest_get_cpustats(Error **errp)
 {
-    error_setg(errp, QERR_UNSUPPORTED);
+    error_setg(errp, "this feature or command is not currently supported");
     return NULL;
 }
