diff --git a/commands/cluster_command_launcher.go b/commands/cluster_command_launcher.go
index bca77d3..a124fef 100644
--- a/commands/cluster_command_launcher.go
+++ b/commands/cluster_command_launcher.go
@@ -175,6 +175,8 @@ const (
 	scrutinizeSubCmd        = "scrutinize"
 	showRestorePointsSubCmd = "show_restore_points"
 	installPkgSubCmd        = "install_packages"
+	// hidden Cmds (for internal testing only)
+	promoteSandboxSubCmd = "promote_sandbox"
 )
 
 // cmdGlobals holds global variables shared by multiple
@@ -535,6 +537,8 @@ func constructCmds() []*cobra.Command {
 		makeCmdManageConfig(),
 		makeCmdReplication(),
 		makeCmdCreateConnection(),
+		// hidden cmds (for internal testing only)
+		makeCmdPromoteSandbox(),
 	}
 }
 
diff --git a/commands/cmd_promote_sandbox.go b/commands/cmd_promote_sandbox.go
new file mode 100644
index 0000000..4f723cc
--- /dev/null
+++ b/commands/cmd_promote_sandbox.go
@@ -0,0 +1,130 @@
+/*
+ (c) Copyright [2023-2024] Open Text.
+ Licensed under the Apache License, Version 2.0 (the "License");
+ You may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+
+ DISCLAIMER:
+ The subcommand (promote_sandbox) within this file is intended solely for internal testing purposes.
+ It is not designed, intended, or authorized for use in production environments. The behavior of this
+ subcommand may change without prior notice and is not guaranteed to be maintained in future releases.
+
+ Use of this function in any production code or reliance upon its behavior is strongly discouraged and
+ undertaken at your own risk. Open Text assumes no responsibility for any consequences arising from the
+ use of this function outside of its intended testing context.
+*/
+
+package commands
+
+import (
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+	"github.com/vertica/vcluster/vclusterops"
+	"github.com/vertica/vcluster/vclusterops/vlog"
+)
+
+/* cmdPromoteSandbox
+ *
+ * Parses arguments to promote a sandbox to main cluster.
+ * This should not be used by VCluster CLI users. See the disclaimer above.
+ *
+ * Implements ClusterCommand interface
+ */
+type cmdPromoteSandbox struct {
+	promoteSandboxOpts *vclusterops.VPromoteSandboxToMainOptions
+	CmdBase
+}
+
+func makeCmdPromoteSandbox() *cobra.Command {
+	newCmd := &cmdPromoteSandbox{}
+	opt := vclusterops.VPromoteSandboxToMainFactory()
+	newCmd.promoteSandboxOpts = &opt
+
+	cmd := makeBasicCobraCmd(
+		newCmd,
+		promoteSandboxSubCmd,
+		"",
+		"",
+		[]string{dbNameFlag, hostsFlag, ipv6Flag, eonModeFlag, configFlag, passwordFlag},
+	)
+
+	// local flags
+	newCmd.setLocalFlags(cmd)
+
+	// required flags
+	markFlagsRequired(cmd, sandboxFlag)
+
+	// hide this subcommand
+	cmd.Hidden = true
+
+	return cmd
+}
+
+// setLocalFlags will set the local flags the command has
+func (c *cmdPromoteSandbox) setLocalFlags(cmd *cobra.Command) {
+	cmd.Flags().StringVar(
+		&c.promoteSandboxOpts.SandboxName,
+		sandboxFlag,
+		"",
+		"The name of the sandbox",
+	)
+}
+
+func (c *cmdPromoteSandbox) Parse(inputArgv []string, logger vlog.Printer) error {
+	c.argv = inputArgv
+	logger.LogArgParse(&c.argv)
+
+	// reset some options that are not included in user input
+	c.ResetUserInputOptions(&c.promoteSandboxOpts.DatabaseOptions)
+
+	// promote_sandbox only works for an Eon db so we assume the user always runs this subcommand
+	// on an Eon db. When Eon mode cannot be found in config file, we set its value to true.
+	if !viper.IsSet(eonModeKey) {
+		c.promoteSandboxOpts.IsEon = true
+	}
+
+	return c.validateParse(logger)
+}
+
+func (c *cmdPromoteSandbox) validateParse(logger vlog.Printer) error {
+	logger.Info("Called validateParse()")
+	if !c.usePassword() {
+		err := c.getCertFilesFromCertPaths(&c.promoteSandboxOpts.DatabaseOptions)
+		if err != nil {
+			return err
+		}
+	}
+
+	err := c.ValidateParseBaseOptions(&c.promoteSandboxOpts.DatabaseOptions)
+	if err != nil {
+		return err
+	}
+	return c.setDBPassword(&c.promoteSandboxOpts.DatabaseOptions)
+}
+
+func (c *cmdPromoteSandbox) Run(vcc vclusterops.ClusterCommands) error {
+	vcc.LogInfo("Called method Run()")
+
+	options := c.promoteSandboxOpts
+
+	err := vcc.VPromoteSandboxToMain(options)
+	if err != nil {
+		vcc.LogError(err, "fail to promote sandbox to main", "sandbox", c.promoteSandboxOpts.SandboxName)
+		return err
+	}
+	vcc.DisplayInfo("Successfully promoted sandbox %q to main", c.promoteSandboxOpts.SandboxName)
+	return nil
+}
+
+// SetDatabaseOptions will assign a vclusterops.DatabaseOptions instance to the one in CmdPromoteSandbox
+func (c *cmdPromoteSandbox) SetDatabaseOptions(opt *vclusterops.DatabaseOptions) {
+	c.promoteSandboxOpts.DatabaseOptions = *opt
+}
diff --git a/go.mod b/go.mod
index f94d3e6..50cc059 100644
--- a/go.mod
+++ b/go.mod
@@ -4,6 +4,7 @@ go 1.20
 
 require (
 	github.com/deckarep/golang-set/v2 v2.3.1
+	github.com/fatih/color v1.14.1
 	github.com/go-logr/logr v1.2.4
 	github.com/go-logr/zapr v1.2.4
 	github.com/spf13/cobra v1.8.0
@@ -16,6 +17,7 @@ require (
 	go.uber.org/zap v1.25.0
 	golang.org/x/exp v0.0.0-20230905200255-921286631fa9
 	golang.org/x/sys v0.15.0
+	golang.org/x/term v0.15.0
 	gopkg.in/yaml.v3 v3.0.1
 	k8s.io/apimachinery v0.26.2
 )
@@ -28,7 +30,6 @@ require (
 	github.com/aws/aws-sdk-go v1.49.5 // indirect
 	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
 	github.com/emicklei/go-restful/v3 v3.11.0 // indirect
-	github.com/fatih/color v1.14.1 // indirect
 	github.com/fsnotify/fsnotify v1.7.0 // indirect
 	github.com/go-openapi/jsonpointer v0.19.5 // indirect
 	github.com/go-openapi/jsonreference v0.20.0 // indirect
@@ -71,7 +72,6 @@ require (
 	golang.org/x/net v0.19.0 // indirect
 	golang.org/x/oauth2 v0.15.0 // indirect
 	golang.org/x/sync v0.5.0 // indirect
-	golang.org/x/term v0.15.0 // indirect
 	golang.org/x/text v0.14.0 // indirect
 	golang.org/x/time v0.5.0 // indirect
 	google.golang.org/api v0.153.0 // indirect
diff --git a/vclusterops/cluster_op.go b/vclusterops/cluster_op.go
index 7182a2d..f573366 100644
--- a/vclusterops/cluster_op.go
+++ b/vclusterops/cluster_op.go
@@ -227,7 +227,7 @@ func (op *opBase) setLogger(logger vlog.Printer) {
 func (op *opBase) parseAndCheckResponse(host, responseContent string, responseObj any) error {
 	err := util.GetJSONLogErrors(responseContent, &responseObj, op.name, op.logger)
 	if err != nil {
-		op.logger.Error(err, "fail to parse response on host, detail", "host", host)
+		op.logger.Error(err, "fail to parse response on host, detail", "host", host, "original responseContent", responseContent)
 		return err
 	}
 	op.logger.Info("JSON response", "host", host, "responseObj", responseObj)
@@ -248,6 +248,13 @@ func (op *opBase) parseAndCheckStringResponse(host, responseContent string) (str
 	return responseStr, err
 }
 
+func (op *opBase) parseAndCheckGenericJSONResponse(host, responseContent string) (nmaGenericJSONResponse, error) {
+	var genericResponse nmaGenericJSONResponse
+	err := op.parseAndCheckResponse(host, responseContent, &genericResponse)
+
+	return genericResponse, err
+}
+
 func (op *opBase) setClusterHTTPRequestName() {
 	op.clusterHTTPRequest.Name = op.name
 }
diff --git a/vclusterops/helpers.go b/vclusterops/helpers.go
index 0ff4851..b73550f 100644
--- a/vclusterops/helpers.go
+++ b/vclusterops/helpers.go
@@ -468,3 +468,9 @@ func (vcc *VClusterCommands) doReIP(options *DatabaseOptions, scName string,
 
 	return nil
 }
+
+// An nmaGenericJSONResponse is the default response that is generated,
+// the response value is of type "string" in JSON format.
+type nmaGenericJSONResponse struct {
+	RespStr string
+}
diff --git a/vclusterops/nma_get_config_parameter_op.go b/vclusterops/nma_get_config_parameter_op.go
index 8fecbdd..4ed8311 100644
--- a/vclusterops/nma_get_config_parameter_op.go
+++ b/vclusterops/nma_get_config_parameter_op.go
@@ -121,10 +121,11 @@ func (op *nmaGetConfigurationParameterOp) processResult(_ *opEngineExecContext)
 		op.logResponse(host, result)
 
 		if result.isPassing() {
-			err := op.parseAndCheckResponse(host, result.content, op.retrievedParamValue)
+			genericResponse, err := op.parseAndCheckGenericJSONResponse(host, result.content)
 			if err != nil {
 				allErrs = errors.Join(allErrs, err)
 			}
+			*op.retrievedParamValue = genericResponse.RespStr
 		} else {
 			allErrs = errors.Join(allErrs, result.err)
 		}
diff --git a/vclusterops/promote_sandbox_to_main.go b/vclusterops/promote_sandbox_to_main.go
index 5cc046f..cf76c6e 100644
--- a/vclusterops/promote_sandbox_to_main.go
+++ b/vclusterops/promote_sandbox_to_main.go
@@ -40,6 +40,9 @@ func (opt *VPromoteSandboxToMainOptions) validateEonOptions(_ vlog.Printer) erro
 	if !opt.IsEon {
 		return fmt.Errorf("promote a sandbox to main is only supported in Eon mode")
 	}
+	if opt.SandboxName == "" {
+		return fmt.Errorf("must specify a sandbox name")
+	}
 	return nil
 }
 
@@ -49,12 +52,12 @@ func (opt *VPromoteSandboxToMainOptions) validateParseOptions(logger vlog.Printe
 		return err
 	}
 
-	// need to provide a password or certs in source database
-	if opt.Password == nil && (opt.Cert == "" || opt.Key == "") {
-		return fmt.Errorf("must provide a password or a key-certificate pair")
+	err = opt.validateBaseOptions(PromoteSandboxToMainCmd, logger)
+	if err != nil {
+		return err
 	}
 
-	return opt.validateBaseOptions(PromoteSandboxToMainCmd, logger)
+	return opt.validateAuthOptions("", logger)
 }
 
 // analyzeOptions will modify some options based on what is chosen
diff --git a/vclusterops/promote_sandbox_to_main_test.go b/vclusterops/promote_sandbox_to_main_test.go
index ce54335..d3a2f19 100644
--- a/vclusterops/promote_sandbox_to_main_test.go
+++ b/vclusterops/promote_sandbox_to_main_test.go
@@ -35,6 +35,10 @@ func TestPromoteSandboxToMainOptions_validateParseOptions(t *testing.T) {
 	opt.Password = &testPassword
 
 	err := opt.validateParseOptions(logger)
+	assert.ErrorContains(t, err, "must specify a sandbox name")
+
+	opt.SandboxName = "sand1"
+	err = opt.validateParseOptions(logger)
 	assert.NoError(t, err)
 
 	opt.UserName = ""