diff --git a/README.md b/README.md
index 4562995..b9e7c07 100644
--- a/README.md
+++ b/README.md
@@ -243,6 +243,7 @@ No provider.
 | map\_config\_local\_base\_path | Base path to local YAML configuration files of map type | `string` | `""` | no |
 | map\_config\_paths | Paths to YAML configuration files of map type | `list(string)` | `[]` | no |
 | map\_config\_remote\_base\_path | Base path to remote YAML configuration files of map type | `string` | `""` | no |
+| map\_configs | List of existing configurations of map type. Deep-merging of the existing map configs takes precedence over the map configs loaded from YAML files | `any` | `[]` | no |
 | name | Solution name, e.g. 'app' or 'jenkins' | `string` | `null` | no |
 | namespace | Namespace, which could be your organization name or abbreviation, e.g. 'eg' or 'cp' | `string` | `null` | no |
 | parameters | Map of parameters for interpolation within the YAML config templates | `map(string)` | `{}` | no |
diff --git a/docs/terraform.md b/docs/terraform.md
index 61d1963..1ece130 100644
--- a/docs/terraform.md
+++ b/docs/terraform.md
@@ -30,6 +30,7 @@ No provider.
 | map\_config\_local\_base\_path | Base path to local YAML configuration files of map type | `string` | `""` | no |
 | map\_config\_paths | Paths to YAML configuration files of map type | `list(string)` | `[]` | no |
 | map\_config\_remote\_base\_path | Base path to remote YAML configuration files of map type | `string` | `""` | no |
+| map\_configs | List of existing configurations of map type. Deep-merging of the existing map configs takes precedence over the map configs loaded from YAML files | `any` | `[]` | no |
 | name | Solution name, e.g. 'app' or 'jenkins' | `string` | `null` | no |
 | namespace | Namespace, which could be your organization name or abbreviation, e.g. 'eg' or 'cp' | `string` | `null` | no |
 | parameters | Map of parameters for interpolation within the YAML config templates | `map(string)` | `{}` | no |
diff --git a/examples/complete/config/map-configs/map-config-3.yaml b/examples/complete/config/map-configs/map-config-3.yaml
new file mode 100644
index 0000000..7d1628d
--- /dev/null
+++ b/examples/complete/config/map-configs/map-config-3.yaml
@@ -0,0 +1,4 @@
+key3:
+  name: name3
+  param: param3
+  type: type3
diff --git a/examples/complete/fixtures.tfvars b/examples/complete/fixtures.tfvars
index 8c429fe..cace8cc 100644
--- a/examples/complete/fixtures.tfvars
+++ b/examples/complete/fixtures.tfvars
@@ -19,3 +19,35 @@ parameters = {
   param1 = "1"
   param2 = "2"
 }
+
+map_configs = [
+  {
+    key3 = {
+      name  = "name3_override"
+      param = "param3_override"
+    },
+    key4 = {
+      name  = "name4"
+      param = "param4"
+      type  = "type4"
+    },
+    key5 = {
+      name  = "name5"
+      param = ["param5a", "param5b"]
+      type  = "type5"
+    }
+  },
+  {
+    key6 = {
+      name  = "name6"
+      param = "param6"
+      type  = "type6"
+    },
+    key1 = [
+      {
+        name  = "name1_override"
+        param = "param1_override"
+      }
+    ]
+  }
+]
diff --git a/examples/complete/main.tf b/examples/complete/main.tf
index 6c1cd75..ce7eebf 100644
--- a/examples/complete/main.tf
+++ b/examples/complete/main.tf
@@ -9,6 +9,8 @@ module "yaml_config" {
   list_config_remote_base_path = var.list_config_remote_base_path
   list_config_paths            = var.list_config_paths
 
+  map_configs = var.map_configs
+
   parameters = var.parameters
 
   context = module.this.context
diff --git a/examples/complete/variables.tf b/examples/complete/variables.tf
index b13e331..9342eb6 100644
--- a/examples/complete/variables.tf
+++ b/examples/complete/variables.tf
@@ -45,3 +45,9 @@ variable "remote_config_selector" {
   description = "String to detect local vs. remote config paths"
   default     = "://"
 }
+
+variable "map_configs" {
+  type        = any
+  description = "List of existing configurations of map type. Deep-merging of the existing map configs takes precedence over the map configs loaded from YAML files"
+  default     = []
+}
diff --git a/examples/imports-local/main.tf b/examples/imports-local/main.tf
index 6c1cd75..ce7eebf 100644
--- a/examples/imports-local/main.tf
+++ b/examples/imports-local/main.tf
@@ -9,6 +9,8 @@ module "yaml_config" {
   list_config_remote_base_path = var.list_config_remote_base_path
   list_config_paths            = var.list_config_paths
 
+  map_configs = var.map_configs
+
   parameters = var.parameters
 
   context = module.this.context
diff --git a/examples/imports-local/variables.tf b/examples/imports-local/variables.tf
index b13e331..9342eb6 100644
--- a/examples/imports-local/variables.tf
+++ b/examples/imports-local/variables.tf
@@ -45,3 +45,9 @@ variable "remote_config_selector" {
   description = "String to detect local vs. remote config paths"
   default     = "://"
 }
+
+variable "map_configs" {
+  type        = any
+  description = "List of existing configurations of map type. Deep-merging of the existing map configs takes precedence over the map configs loaded from YAML files"
+  default     = []
+}
diff --git a/examples/imports-remote/main.tf b/examples/imports-remote/main.tf
index 6c1cd75..ce7eebf 100644
--- a/examples/imports-remote/main.tf
+++ b/examples/imports-remote/main.tf
@@ -9,6 +9,8 @@ module "yaml_config" {
   list_config_remote_base_path = var.list_config_remote_base_path
   list_config_paths            = var.list_config_paths
 
+  map_configs = var.map_configs
+
   parameters = var.parameters
 
   context = module.this.context
diff --git a/examples/imports-remote/variables.tf b/examples/imports-remote/variables.tf
index b13e331..9342eb6 100644
--- a/examples/imports-remote/variables.tf
+++ b/examples/imports-remote/variables.tf
@@ -45,3 +45,9 @@ variable "remote_config_selector" {
   description = "String to detect local vs. remote config paths"
   default     = "://"
 }
+
+variable "map_configs" {
+  type        = any
+  description = "List of existing configurations of map type. Deep-merging of the existing map configs takes precedence over the map configs loaded from YAML files"
+  default     = []
+}
diff --git a/main.tf b/main.tf
index 0afdcdf..7d047d4 100644
--- a/main.tf
+++ b/main.tf
@@ -150,18 +150,21 @@ module "yaml_config_10" {
 module "maps_deepmerge" {
   source = "./modules/deepmerge"
 
-  maps = [
-    module.yaml_config_10.map_configs,
-    module.yaml_config_9.map_configs,
-    module.yaml_config_8.map_configs,
-    module.yaml_config_7.map_configs,
-    module.yaml_config_6.map_configs,
-    module.yaml_config_5.map_configs,
-    module.yaml_config_4.map_configs,
-    module.yaml_config_3.map_configs,
-    module.yaml_config_2.map_configs,
-    module.yaml_config_1.map_configs
-  ]
+  maps = concat(
+    [
+      module.yaml_config_10.map_configs,
+      module.yaml_config_9.map_configs,
+      module.yaml_config_8.map_configs,
+      module.yaml_config_7.map_configs,
+      module.yaml_config_6.map_configs,
+      module.yaml_config_5.map_configs,
+      module.yaml_config_4.map_configs,
+      module.yaml_config_3.map_configs,
+      module.yaml_config_2.map_configs,
+      module.yaml_config_1.map_configs
+    ],
+    var.map_configs
+  )
 }
 
 locals {
diff --git a/variables.tf b/variables.tf
index b13e331..9342eb6 100644
--- a/variables.tf
+++ b/variables.tf
@@ -45,3 +45,9 @@ variable "remote_config_selector" {
   description = "String to detect local vs. remote config paths"
   default     = "://"
 }
+
+variable "map_configs" {
+  type        = any
+  description = "List of existing configurations of map type. Deep-merging of the existing map configs takes precedence over the map configs loaded from YAML files"
+  default     = []
+}