diff --git a/src/Physics/Material/Material_Models/Correspondence_UMAT.jl b/src/Physics/Material/Material_Models/Correspondence_UMAT.jl
index 87bccb34b..7272313a3 100644
--- a/src/Physics/Material/Material_Models/Correspondence_UMAT.jl
+++ b/src/Physics/Material/Material_Models/Correspondence_UMAT.jl
@@ -59,13 +59,14 @@ function init_material_model(datamanager::Module, nodes::Union{SubArray,Vector{I
   end
   # properties include the material properties, etc. 
   num_props = material_parameter["Number of Properties"]
-  properties = datamanager.create_constant_free_size_field("Properties", Float64, num_props, 1)
+  properties = datamanager.create_constant_free_size_field("Properties", Float64, (num_props, 1))
+
   for iID in 1:num_props
     if !haskey(material_parameter, "Property_$iID")
       @error "Property_$iID is missing. Number of properties is $num_props and properties have to be in order without a missing number."
       return nothing
     end
-    props[iID] = material_parameter["Property_$iID"]
+    properties[iID] = material_parameter["Property_$iID"]
   end
 
   if !haskey(material_parameter, "UMAT Material Name")
diff --git a/test/runtests.jl b/test/runtests.jl
index 4e3d9a00e..621d16365 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -118,7 +118,6 @@ MPI.Init()
                     @includetests["unit_tests/Physics/Additive/ut_Additive_Factory"]
                 end
             end
-
             @testset "Corrosion" begin
                 @testset "ut_Corrosion_Factory" begin
                     @includetests["unit_tests/Physics/Corrosion/ut_Corrosion_Factory"]
@@ -158,6 +157,7 @@ MPI.Init()
                 end
                 @testset "ut_correspondence" begin
                     @includetests["unit_tests/Physics/Material/Material_Models/ut_Correspondence"]
+                    @includetests["unit_tests/Physics/Material/Material_Models/ut_Correspondence_UMAT"]
                 end
                 @testset "ut_ordinary" begin
                     @includetests["unit_tests/Physics/Material/Material_Models/Ordinary/ut_ordinary"]
diff --git a/test/unit_tests/Physics/Material/Material_Models/ut_Correspondence_UMAT.jl b/test/unit_tests/Physics/Material/Material_Models/ut_Correspondence_UMAT.jl
new file mode 100644
index 000000000..cc5cdd4b7
--- /dev/null
+++ b/test/unit_tests/Physics/Material/Material_Models/ut_Correspondence_UMAT.jl
@@ -0,0 +1,38 @@
+# SPDX-FileCopyrightText: 2023 Christian Willberg <christian.willberg@dlr.de>, Jan-Timo Hesse <jan-timo.hesse@dlr.de>
+#
+# SPDX-License-Identifier: BSD-3-Clause
+using Test
+include("../../../../../src/Physics/Material/Material_Models/Correspondence_UMAT.jl")
+include("../../../../../src/Support/data_manager.jl")
+include("../../../../../src/Support/data_manager.jl")
+@testset "get_name&fe_support" begin
+    @test Correspondence_UMAT.correspondence_name() == "Correspondence UMAT"
+    @test Correspondence_UMAT.fe_support()
+end
+@testset "init exceptions" begin
+    nodes = 2
+    test_Data_manager = Data_manager
+    test_Data_manager.set_num_controller(nodes)
+    dof = 3
+    test_Data_manager.set_dof(dof)
+
+    @test isnothing(Correspondence_UMAT.init_material_model(test_Data_manager, Vector{Int64}(1:nodes), Dict()))
+    @test isnothing(Correspondence_UMAT.init_material_model(test_Data_manager, Vector{Int64}(1:nodes), Dict("Number of Properties" => 3, "Property_1" => 2, "Property_3" => 2)))
+    @test isnothing(Correspondence_UMAT.init_material_model(test_Data_manager, Vector{Int64}(1:nodes), Dict("Number of Properties" => 3, "Property_1" => 2, "Property_3" => 2, "Property_4" => 2)))
+
+
+    @test isnothing(Correspondence_UMAT.init_material_model(test_Data_manager, Vector{Int64}(1:nodes), Dict("Number of Properties" => 3, "Property_1" => 2, "Property_2" => 2, "Property_3" => 2.4, "UMAT Material Name" => "a"^81)))
+    @test !isnothing(Correspondence_UMAT.init_material_model(test_Data_manager, Vector{Int64}(1:nodes), Dict("Number of Properties" => 3, "Property_1" => 2, "Property_2" => 2, "Property_3" => 2.4, "UMAT Material Name" => "a"^80)))
+
+    @test isnothing(Correspondence_UMAT.init_material_model(test_Data_manager, Vector{Int64}(1:nodes), Dict("Number of Properties" => 3, "Property_1" => 2, "Property_2" => 2, "Property_3" => 2.4, "Property_4" => 2.4, "Predefined Field Names" => "s")))
+
+    properties = test_Data_manager.get_field("Properties")
+    @test length(properties) == 3
+    @test properties[1] == 2
+    @test properties[2] == 2
+    @test properties[3] == 2.4
+
+    test_Data_manager.create_constant_node_field("test_field", Float64, 2)
+    Correspondence_UMAT.init_material_model(test_Data_manager, Vector{Int64}(1:nodes), Dict("Number of Properties" => 3, "Property_1" => 2, "Property_2" => 2, "Property_3" => 2.4, "Predefined Field Names" => "test_field"))
+    @test ("test_field" in test_Data_manager.get_all_field_keys())
+end
\ No newline at end of file