diff --git a/powertrain_build/zone_controller/composition_yaml.py b/powertrain_build/zone_controller/composition_yaml.py
index edd8afe..f5769d3 100644
--- a/powertrain_build/zone_controller/composition_yaml.py
+++ b/powertrain_build/zone_controller/composition_yaml.py
@@ -514,6 +514,8 @@ class CompositionYaml(ProblemLogger):
         if self.build_cfg.get_composition_config("includeStatic"):
             swcs[software_component_name]["static"] = self.meas_class_info["autosar"]["class_info"]
         swcs[software_component_name]["ports"] = self._get_ports_info()
+        if self.composition_spec.get("io") is not None:
+            swcs[software_component_name]["io"] = self.composition_spec["io"]
         diagnostic_info = self._get_diagnostic_info()
         if self.build_cfg.get_composition_config("includeDiagnostics"):
             swcs[software_component_name]["diagnostics"] = diagnostic_info
diff --git a/test_data/zone_controller/test_composition_yaml/composition_yaml.py b/test_data/zone_controller/test_composition_yaml/composition_yaml.py
index 6ca0fdd..b26b5a7 100644
--- a/test_data/zone_controller/test_composition_yaml/composition_yaml.py
+++ b/test_data/zone_controller/test_composition_yaml/composition_yaml.py
@@ -27,6 +27,20 @@ expected_result = {
             "nv-needs": {},
             "static": composition_yaml_setup.base_static,
             "shared":  composition_yaml_setup.base_shared,
+            "io": {
+                "DUMMY1": {
+                    "DUMMY1": {
+                        "dataElement": "DUMMY1",
+                        "runnable": ["DummyRunnable"]
+                    },
+                    "PPortPrototype_IoHwAb_GetDUMMY1": {
+                        "operation": "Op_IoHwAb_GetDUMMY1",
+                        "runnable": ["DummyRunnable"],
+                        "timeout": 0,
+                        "calltype": "sync"
+                    }
+                }
+            },
             "ports": {
                 "GlobSignNme": {"direction": "IN", "interface": "PIGlobSignNme"}
             },
@@ -60,6 +74,20 @@ expected_extra_runnable_keys_result = {
             "nv-needs": {},
             "static": composition_yaml_setup.base_static,
             "shared":  composition_yaml_setup.base_shared,
+            "io": {
+                "DUMMY1": {
+                    "DUMMY1": {
+                        "dataElement": "DUMMY1",
+                        "runnable": ["DummyRunnable"]
+                    },
+                    "PPortPrototype_IoHwAb_GetDUMMY1": {
+                        "operation": "Op_IoHwAb_GetDUMMY1",
+                        "runnable": ["DummyRunnable"],
+                        "timeout": 0,
+                        "calltype": "sync"
+                    }
+                }
+            },
             "ports": {
                 "GlobSignNme": {"direction": "IN", "interface": "PIGlobSignNme"}
             }
@@ -92,6 +120,20 @@ expected_custom_names_result = {
             "nv-needs": {},
             "static": composition_yaml_setup.base_static,
             "shared":  composition_yaml_setup.base_shared,
+            "io": {
+                "DUMMY1": {
+                    "DUMMY1": {
+                        "dataElement": "DUMMY1",
+                        "runnable": ["DummyRunnable"]
+                    },
+                    "PPortPrototype_IoHwAb_GetDUMMY1": {
+                        "operation": "Op_IoHwAb_GetDUMMY1",
+                        "runnable": ["DummyRunnable"],
+                        "timeout": 0,
+                        "calltype": "sync"
+                    }
+                }
+            },
             "ports": {
                 "GlobSignNme": {"direction": "IN", "interface": "PIGlobSignNme"}
             },
@@ -133,6 +175,20 @@ expected_cal_result = {
             "nv-needs": {},
             "static": composition_yaml_setup.base_static,
             "shared":  composition_yaml_setup.cal_shared,
+            "io": {
+                "DUMMY1": {
+                    "DUMMY1": {
+                        "dataElement": "DUMMY1",
+                        "runnable": ["DummyRunnable"]
+                    },
+                    "PPortPrototype_IoHwAb_GetDUMMY1": {
+                        "operation": "Op_IoHwAb_GetDUMMY1",
+                        "runnable": ["DummyRunnable"],
+                        "timeout": 0,
+                        "calltype": "sync"
+                    }
+                }
+            },
             "ports": {
                 "GlobSignNme": {"direction": "IN", "interface": "PIGlobSignNme"}
             },
diff --git a/test_data/zone_controller/test_composition_yaml/composition_yaml_setup.py b/test_data/zone_controller/test_composition_yaml/composition_yaml_setup.py
index 364daa2..d95856f 100644
--- a/test_data/zone_controller/test_composition_yaml/composition_yaml_setup.py
+++ b/test_data/zone_controller/test_composition_yaml/composition_yaml_setup.py
@@ -406,6 +406,20 @@ get_per_cfg_unit_cfg_return_value = {
 }
 
 zc_spec = {
+    "io": {
+        "DUMMY1": {
+            "DUMMY1": {
+                "dataElement": "DUMMY1",
+                "runnable": ["DummyRunnable"]
+            },
+            "PPortPrototype_IoHwAb_GetDUMMY1": {
+                "operation": "Op_IoHwAb_GetDUMMY1",
+                "runnable": ["DummyRunnable"],
+                "timeout": 0,
+                "calltype": "sync"
+            }
+        }
+    },
     "ports": {
         "GlobSignNme": {"direction": "IN", "interface": "PIGlobSignNme"}
     },
diff --git a/test_data/zone_controller/test_composition_yaml/composition_yaml_with_a2l_axis_data.py b/test_data/zone_controller/test_composition_yaml/composition_yaml_with_a2l_axis_data.py
index 07c10c6..d7d4cc6 100644
--- a/test_data/zone_controller/test_composition_yaml/composition_yaml_with_a2l_axis_data.py
+++ b/test_data/zone_controller/test_composition_yaml/composition_yaml_with_a2l_axis_data.py
@@ -217,6 +217,20 @@ expected_result = {
                     ]
                 }
             },
+            "io": {
+                "DUMMY1": {
+                    "DUMMY1": {
+                        "dataElement": "DUMMY1",
+                        "runnable": ["DummyRunnable"]
+                    },
+                    "PPortPrototype_IoHwAb_GetDUMMY1": {
+                        "operation": "Op_IoHwAb_GetDUMMY1",
+                        "runnable": ["DummyRunnable"],
+                        "timeout": 0,
+                        "calltype": "sync"
+                    }
+                }
+            },
             "ports": {
                 "GlobSignNme": {"direction": "IN", "interface": "PIGlobSignNme"}
             },
diff --git a/test_data/zone_controller/test_composition_yaml/composition_yaml_with_calls_all_fields.py b/test_data/zone_controller/test_composition_yaml/composition_yaml_with_calls_all_fields.py
index cf2c0ff..1d64702 100644
--- a/test_data/zone_controller/test_composition_yaml/composition_yaml_with_calls_all_fields.py
+++ b/test_data/zone_controller/test_composition_yaml/composition_yaml_with_calls_all_fields.py
@@ -33,6 +33,20 @@ expected_result = {
             "nv-needs": {},
             "static": composition_yaml_setup.base_static,
             "shared":  composition_yaml_setup.base_shared,
+            "io": {
+                "DUMMY1": {
+                    "DUMMY1": {
+                        "dataElement": "DUMMY1",
+                        "runnable": ["DummyRunnable"]
+                    },
+                    "PPortPrototype_IoHwAb_GetDUMMY1": {
+                        "operation": "Op_IoHwAb_GetDUMMY1",
+                        "runnable": ["DummyRunnable"],
+                        "timeout": 0,
+                        "calltype": "sync"
+                    }
+                }
+            },
             "ports": {
                 "GlobSignNme": {"direction": "IN", "interface": "PIGlobSignNme"},
                 "CallOne": {"direction": "IN", "interface": "InterfaceOne"}
diff --git a/test_data/zone_controller/test_composition_yaml/composition_yaml_with_calls_no_optional_fields.py b/test_data/zone_controller/test_composition_yaml/composition_yaml_with_calls_no_optional_fields.py
index 28b2478..ee09cb6 100644
--- a/test_data/zone_controller/test_composition_yaml/composition_yaml_with_calls_no_optional_fields.py
+++ b/test_data/zone_controller/test_composition_yaml/composition_yaml_with_calls_no_optional_fields.py
@@ -32,6 +32,20 @@ expected_result = {
             "nv-needs": {},
             "static": composition_yaml_setup.base_static,
             "shared":  composition_yaml_setup.base_shared,
+            "io": {
+                "DUMMY1": {
+                    "DUMMY1": {
+                        "dataElement": "DUMMY1",
+                        "runnable": ["DummyRunnable"]
+                    },
+                    "PPortPrototype_IoHwAb_GetDUMMY1": {
+                        "operation": "Op_IoHwAb_GetDUMMY1",
+                        "runnable": ["DummyRunnable"],
+                        "timeout": 0,
+                        "calltype": "sync"
+                    }
+                }
+            },
             "ports": {
                 "GlobSignNme": {"direction": "IN", "interface": "PIGlobSignNme"},
                 "CallOne": {"direction": "IN", "interface": "CallOne"}
diff --git a/test_data/zone_controller/test_composition_yaml/composition_yaml_with_dids.py b/test_data/zone_controller/test_composition_yaml/composition_yaml_with_dids.py
index d18c6a4..938e028 100644
--- a/test_data/zone_controller/test_composition_yaml/composition_yaml_with_dids.py
+++ b/test_data/zone_controller/test_composition_yaml/composition_yaml_with_dids.py
@@ -89,6 +89,20 @@ expected_result = {
             "nv-needs": {},
             "static": composition_yaml_setup.base_static,
             "shared":  composition_yaml_setup.base_shared,
+            "io": {
+                "DUMMY1": {
+                    "DUMMY1": {
+                        "dataElement": "DUMMY1",
+                        "runnable": ["DummyRunnable"]
+                    },
+                    "PPortPrototype_IoHwAb_GetDUMMY1": {
+                        "operation": "Op_IoHwAb_GetDUMMY1",
+                        "runnable": ["DummyRunnable"],
+                        "timeout": 0,
+                        "calltype": "sync"
+                    }
+                }
+            },
             "ports": {
                 "GlobSignNme": {"direction": "IN", "interface": "PIGlobSignNme"},
             }
diff --git a/test_data/zone_controller/test_composition_yaml/composition_yaml_with_dtcs.py b/test_data/zone_controller/test_composition_yaml/composition_yaml_with_dtcs.py
index bc77398..e706cb5 100644
--- a/test_data/zone_controller/test_composition_yaml/composition_yaml_with_dtcs.py
+++ b/test_data/zone_controller/test_composition_yaml/composition_yaml_with_dtcs.py
@@ -71,6 +71,20 @@ expected_result = {
             "nv-needs": {},
             "static": composition_yaml_setup.base_static,
             "shared":  composition_yaml_setup.base_shared,
+            "io": {
+                "DUMMY1": {
+                    "DUMMY1": {
+                        "dataElement": "DUMMY1",
+                        "runnable": ["DummyRunnable"]
+                    },
+                    "PPortPrototype_IoHwAb_GetDUMMY1": {
+                        "operation": "Op_IoHwAb_GetDUMMY1",
+                        "runnable": ["DummyRunnable"],
+                        "timeout": 0,
+                        "calltype": "sync"
+                    }
+                }
+            },
             "ports": {
                 "GlobSignNme": {"direction": "IN", "interface": "PIGlobSignNme"},
             }
diff --git a/test_data/zone_controller/test_composition_yaml/composition_yaml_with_nvm.py b/test_data/zone_controller/test_composition_yaml/composition_yaml_with_nvm.py
index 2f9b193..24dc29e 100644
--- a/test_data/zone_controller/test_composition_yaml/composition_yaml_with_nvm.py
+++ b/test_data/zone_controller/test_composition_yaml/composition_yaml_with_nvm.py
@@ -146,6 +146,20 @@ expected_result = {
                 **additional_static,
             },
             "shared":  composition_yaml_setup.base_shared,
+            "io": {
+                "DUMMY1": {
+                    "DUMMY1": {
+                        "dataElement": "DUMMY1",
+                        "runnable": ["DummyRunnable"]
+                    },
+                    "PPortPrototype_IoHwAb_GetDUMMY1": {
+                        "operation": "Op_IoHwAb_GetDUMMY1",
+                        "runnable": ["DummyRunnable"],
+                        "timeout": 0,
+                        "calltype": "sync"
+                    }
+                }
+            },
             "ports": {
                 "GlobSignNme": {"direction": "IN", "interface": "PIGlobSignNme"}
             },