diff --git a/file-formats/smtg/README.md b/file-formats/smtg/README.md
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+++ b/file-formats/smtg/README.md
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+# SMTG File Format
+
+File | Cardinality | Definition | Schema | Example
+:--- | :--- | :--- | :--- | :---
+`<name>.smtg.json` | 1 | [`zif_aff_smtg_v1.intf.abap`](./type/zif_aff_smtg_v1.intf.abap) | [`smtg-v1.json`](./smtg-v1.json)
diff --git a/file-formats/smtg/smtg-v1.json b/file-formats/smtg/smtg-v1.json
new file mode 100644
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+++ b/file-formats/smtg/smtg-v1.json
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+{
+  "$comment": "This file is autogenerated, do not edit manually, see https://github.com/SAP/abap-file-formats for more information.",
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$id": "https://github.com/SAP/abap-file-formats/blob/main/file-formats/smtg/smtg-v1.json",
+  "title": "Email Template",
+  "description": "Email Template",
+  "type": "object",
+  "properties": {
+    "formatVersion": {
+      "title": "Format Version",
+      "description": "Format version",
+      "type": "string",
+      "const": "1"
+    },
+    "header": {
+      "title": "Header",
+      "description": "Header",
+      "type": "object",
+      "properties": {
+        "description": {
+          "title": "Description",
+          "description": "Description of the ABAP object",
+          "type": "string",
+          "maxLength": 60
+        },
+        "originalLanguage": {
+          "title": "Original Language",
+          "description": "Original language of the ABAP object",
+          "type": "string",
+          "minLength": 2
+        },
+        "abapLanguageVersion": {
+          "title": "ABAP Language Version",
+          "description": "ABAP language version",
+          "type": "string",
+          "enum": [
+            "standard",
+            "keyUser",
+            "cloudDevelopment"
+          ],
+          "enumTitles": [
+            "Standard",
+            "ABAP for Key Users",
+            "ABAP Cloud Development"
+          ],
+          "enumDescriptions": [
+            "Standard",
+            "ABAP for key user extensibility",
+            "ABAP cloud development"
+          ],
+          "default": "standard"
+        }
+      },
+      "additionalProperties": false,
+      "required": [
+        "description",
+        "originalLanguage"
+      ]
+    },
+    "generalInformation": {
+      "title": "General Information",
+      "description": "General information",
+      "type": "object",
+      "properties": {
+        "longDescription": {
+          "title": "Template Description",
+          "description": "Long description to that email template",
+          "type": "string",
+          "maxLength": 255
+        },
+        "isPredelivered": {
+          "title": "Predelivered",
+          "description": "Indicator if the template is predelivered",
+          "type": "boolean"
+        },
+        "isPlaintextAutoGenerated": {
+          "title": "Generate Plain Text from HTML",
+          "description": "Indicator if the template text body is generated automatically from html body",
+          "type": "boolean"
+        },
+        "cdsView": {
+          "title": "CDS View",
+          "description": "The corresponding CDS view name for the template",
+          "type": "string",
+          "maxLength": 30
+        },
+        "emailSubject": {
+          "title": "Subject",
+          "description": "The subject of the email template",
+          "type": "string",
+          "maxLength": 255
+        }
+      },
+      "additionalProperties": false,
+      "required": [
+        "cdsView",
+        "emailSubject"
+      ]
+    }
+  },
+  "additionalProperties": false,
+  "required": [
+    "formatVersion",
+    "header",
+    "generalInformation"
+  ]
+}
diff --git a/file-formats/smtg/type/zif_aff_smtg_v1.intf.abap b/file-formats/smtg/type/zif_aff_smtg_v1.intf.abap
new file mode 100644
index 000000000..0003bb422
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+++ b/file-formats/smtg/type/zif_aff_smtg_v1.intf.abap
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+INTERFACE zif_aff_smtg_v1
+  PUBLIC.
+
+  TYPES:
+    "! <p class="shorttext">General Information</p>
+    "! Combines template header and administrative data.
+    BEGIN OF ty_general_information,
+      "! <p class="shorttext">Template Description</p>
+      "! Long description to that email template
+      long_description            TYPE c LENGTH 255,
+      "! <p class="shorttext">Predelivered</p>
+      "! Indicator if the template is predelivered
+      is_predelivered             TYPE abap_bool,
+      "! <p class="shorttext">Generate Plain Text from HTML</p>
+      "! Indicator if the template text body is generated automatically from html body
+      is_plaintext_auto_generated TYPE abap_bool,
+      "! <p class="shorttext">CDS View</p>
+      "! The corresponding CDS view name for the template
+      "! $required
+      cds_view                    TYPE zif_aff_types_v1=>ty_object_name_30,
+      "! <p class="shorttext">Subject</p>
+      "! The subject of the email template
+      "! $required
+      email_subject               TYPE c LENGTH 255,
+    END OF ty_general_information.
+  " Corresponding content ist stored in a separate file and implemented as action
+
+
+  TYPES:
+    "! <p class="shorttext">Email Template</p>
+    "! Email Template
+    BEGIN OF ty_main,
+      "! <p class="shorttext">Format Version</p>
+      "! Format version
+      "! $required
+      format_version      TYPE zif_aff_types_v1=>ty_format_version,
+      "! <p class="shorttext">Header</p>
+      "! Header
+      "! $required
+      header              TYPE zif_aff_types_v1=>ty_header_60,
+      "! <p class="shorttext">General Information</p>
+      "! General information
+      "! $required
+      general_information TYPE ty_general_information,
+    END OF ty_main.
+
+ENDINTERFACE.
diff --git a/file-formats/smtg/type/zif_aff_smtg_v1.intf.json b/file-formats/smtg/type/zif_aff_smtg_v1.intf.json
new file mode 100644
index 000000000..48bbb42ec
--- /dev/null
+++ b/file-formats/smtg/type/zif_aff_smtg_v1.intf.json
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+{
+  "formatVersion": "1",
+  "header": {
+    "description": "test email template file format",
+    "originalLanguage": "en"
+  }
+}