diff --git a/components/apimgt/org.wso2.carbon.apimgt.impl/src/main/java/org/wso2/carbon/apimgt/impl/APIProviderImpl.java b/components/apimgt/org.wso2.carbon.apimgt.impl/src/main/java/org/wso2/carbon/apimgt/impl/APIProviderImpl.java
index 6841ab42dda2..3a3bd0c09728 100644
--- a/components/apimgt/org.wso2.carbon.apimgt.impl/src/main/java/org/wso2/carbon/apimgt/impl/APIProviderImpl.java
+++ b/components/apimgt/org.wso2.carbon.apimgt.impl/src/main/java/org/wso2/carbon/apimgt/impl/APIProviderImpl.java
@@ -6979,7 +6979,7 @@ public boolean isPolicyMappingDeploymentExists(String gatewayPolicyMappingId, St
     @Override
     public boolean hasExistingDeployments(String tenantDomain, String gatewayLabel) throws APIManagementException {
         return !StringUtils.isBlank(
-                apiMgtDAO.getGatewayPolicyMappingByGatewayLabel(tenantDomain, gatewayLabel));
+                apiMgtDAO.getGatewayPolicyMappingByGatewayLabel(gatewayLabel, tenantDomain));
     }
 
     @Override
diff --git a/components/apimgt/org.wso2.carbon.apimgt.rest.api.publisher.v1/src/main/java/org/wso2/carbon/apimgt/rest/api/publisher/v1/impl/GatewayPoliciesApiServiceImpl.java b/components/apimgt/org.wso2.carbon.apimgt.rest.api.publisher.v1/src/main/java/org/wso2/carbon/apimgt/rest/api/publisher/v1/impl/GatewayPoliciesApiServiceImpl.java
index e310efe3dfc0..1dc6700a231e 100644
--- a/components/apimgt/org.wso2.carbon.apimgt.rest.api.publisher.v1/src/main/java/org/wso2/carbon/apimgt/rest/api/publisher/v1/impl/GatewayPoliciesApiServiceImpl.java
+++ b/components/apimgt/org.wso2.carbon.apimgt.rest.api.publisher.v1/src/main/java/org/wso2/carbon/apimgt/rest/api/publisher/v1/impl/GatewayPoliciesApiServiceImpl.java
@@ -128,9 +128,13 @@ public Response engageGlobalPolicy(String gatewayPolicyMappingId,
             // checks whether the gateway policy mapping exists in the particular gateway
             for (GatewayPolicyDeploymentDTO gatewayPolicyDeploymentDTO : gatewayPolicyDeploymentDTOList) {
                 String gwName = gatewayPolicyDeploymentDTO.getGatewayLabel();
-                if (apiProvider.hasExistingDeployments(organization, gwName)) {
+                boolean isDeployment = gatewayPolicyDeploymentDTO.isGatewayDeployment();
+                if (isDeployment && apiProvider.hasExistingDeployments(organization, gwName)) {
                     RestApiUtil.handleBadRequest("Gateway policy mapping is already deployed in the gateway: " + gwName,
                             log);
+                } else if (!isDeployment && !apiProvider.hasExistingDeployments(organization, gwName)) {
+                    RestApiUtil.handleBadRequest("Gateway policy mapping is not deployed in the gateway: " + gwName,
+                            log);
                 }
             }
             List<OperationPolicyData> operationPolicyDataList = apiProvider.getGatewayPolicyDataListByPolicyId(
diff --git a/components/apimgt/org.wso2.carbon.apimgt.rest.api.publisher.v1/src/main/resources/publisher-api.yaml b/components/apimgt/org.wso2.carbon.apimgt.rest.api.publisher.v1/src/main/resources/publisher-api.yaml
index b2d796182956..5efcbd01c27c 100644
--- a/components/apimgt/org.wso2.carbon.apimgt.rest.api.publisher.v1/src/main/resources/publisher-api.yaml
+++ b/components/apimgt/org.wso2.carbon.apimgt.rest.api.publisher.v1/src/main/resources/publisher-api.yaml
@@ -8375,6 +8375,8 @@ paths:
           $ref: '#/components/responses/Forbidden'
         404:
           $ref: '#/components/responses/NotFound'
+        412:
+          $ref: '#/components/responses/PreconditionFailed'
         500:
           $ref: '#/components/responses/InternalServerError'
       security:
@@ -8463,7 +8465,9 @@ paths:
           content:
             application/json:
               schema:
-                $ref: '#/components/schemas/GatewayPolicyDeployment'
+                type: array
+                items:
+                  $ref: '#/components/schemas/GatewayPolicyDeployment'
         400:
           $ref: '#/components/responses/BadRequest'
         404: