diff --git a/opendj-server-legacy/src/main/java/org/opends/server/tools/ImportLDIF.java b/opendj-server-legacy/src/main/java/org/opends/server/tools/ImportLDIF.java
index 9144252f6a..28edc66c62 100644
--- a/opendj-server-legacy/src/main/java/org/opends/server/tools/ImportLDIF.java
+++ b/opendj-server-legacy/src/main/java/org/opends/server/tools/ImportLDIF.java
@@ -243,6 +243,11 @@ else if (! templateFile.isPresent())
     return process(argParser, initializeServer, out, err);
   }
 
+  @Override
+  protected LocalizableMessage getOfflineDescriptionMessage() {
+    return INFO_LDIFIMPORT_DESCRIPTION_RUN_OFFLINE.get();
+  }
+
   private void createArguments(LDAPConnectionArgumentParser argParser) throws ArgumentException
   {
       configFile =
diff --git a/opendj-server-legacy/src/main/java/org/opends/server/tools/tasks/TaskTool.java b/opendj-server-legacy/src/main/java/org/opends/server/tools/tasks/TaskTool.java
index 44e8515abb..cefc15041d 100644
--- a/opendj-server-legacy/src/main/java/org/opends/server/tools/tasks/TaskTool.java
+++ b/opendj-server-legacy/src/main/java/org/opends/server/tools/tasks/TaskTool.java
@@ -157,8 +157,9 @@ protected LDAPConnectionArgumentParser createArgParser(String className,
       }
 
       runOfflineArg = BooleanArgument.builder("offline")
-                                     .description(INFO_DESCRIPTION_RUN_OFFLINE.get())
-                                     .buildAndAddToParser(argParser);
+              .description(getOfflineDescriptionMessage())
+              .buildAndAddToParser(argParser);
+
     } catch (ArgumentException e) {
       // should never happen
     }
@@ -166,6 +167,10 @@ protected LDAPConnectionArgumentParser createArgParser(String className,
     return argParser;
   }
 
+  protected LocalizableMessage getOfflineDescriptionMessage() {
+    return INFO_DESCRIPTION_RUN_OFFLINE.get();
+  }
+
   /**
    * Validates arguments related to task scheduling.  This should be
    * called after the <code>ArgumentParser.parseArguments</code> has
diff --git a/opendj-server-legacy/src/messages/org/opends/messages/tool.properties b/opendj-server-legacy/src/messages/org/opends/messages/tool.properties
index 89347dbd0a..b488fc1336 100644
--- a/opendj-server-legacy/src/messages/org/opends/messages/tool.properties
+++ b/opendj-server-legacy/src/messages/org/opends/messages/tool.properties
@@ -1682,7 +1682,8 @@ INFO_DESCRIPTION_PWPSTATE_CLEAR_PASSWORD_HISTORY_1203=Clear password history \
 ERR_CONFIGDS_PORT_ALREADY_SPECIFIED_1211=ERROR:  You have specified \
  the value %s for different ports
 INFO_LDIFIMPORT_DESCRIPTION_CLEAR_BACKEND_1251=Remove all entries for all \
- base DNs in the backend before importing
+ base DNs in the backend before importing. Set to `true` when running in the offline mode \
+ (i.e. the `--offline` flag is set)
 ERR_LDIFIMPORT_MISSING_BACKEND_ARGUMENT_1252=Neither the %s or the %s \
  argument was provided.  One of these arguments must be given to specify the \
  backend for the LDIF data to be imported to
@@ -1984,6 +1985,8 @@ INFO_JAVAPROPERTIES_SUCCESSFUL_1495=The operation was successful.  The server \
  commands will use the java arguments and java home specified in the \
  properties file located in %s
 INFO_DESCRIPTION_RUN_OFFLINE_1496=Indicates that the command must be run in offline mode
+INFO_LDIFIMPORT_DESCRIPTION_RUN_OFFLINE_14960=Indicates that the command must be run in offline mode. \
+  Forces old data replacement with imported data.
 ERR_BACKUPDB_REPEATED_BACKEND_ID_1497=The backend ID '%s' has been \
  specified several times
 ERR_INSTALLDS_EMPTY_DN_RESPONSE_1498=ERROR:  The empty LDAP DN is not \