Basic of Extension

1. In the extension list click on the button “Add New Extension” on the top right and you will see the below screen.

2. As you can see in the above screenshot, some fields are empty and some are pre-filled. Let’s see about each of them.

1. Extension Name: Add the name of the extension you want to create.
2. Vendor Name: Add your vendor name.
3. Extension key: It will be generated automatically according to the name of your extension, you can edit the extension key and add a valid key, once it is generated automatically. You can check this ref. link for the valid extension key: https://docs.typo3.org/m/typo3/reference-coreapi/main/en-us/ExtensionArchitecture/BestPractises/ExtensionKey.html
4. Description: Add the description of the extension.
5. Extension version: You can update the pre-filled version of your extension to match your extension’s version.
6. Extension Author: You can update the author’s name of your extension.
7. Extension Category: Select the category of your extension to update it. Below is the list of the categories (Ref. link: https://docs.typo3.org/m/typo3/reference-coreapi/12.4/en-us/ExtensionArchitecture/FileStructure/ExtEmconf.html#file-ext-emconf-php)
   1. Frontend plugins: Frontend plugins (Plugins inserted as an “Insert Plugin” content element)
   2. Backend modules: Backend modules (When something is a module or connects with one)
   3. Miscellaneous: Miscellaneous stuff (Where not easily placed elsewhere)
   4. Backend: Backend (Generally backend-oriented, but not a module)
   5. Frontend: Frontend (Generally frontend oriented, but not a “true” plugin)
   6. Services: Contains TYPO3 services
   7. Templates: Contains website templates
   8. Distribution: Distribution, an extension kickstarting a full site
   9. Examples: Example extension (Which serves as examples etc.)
   10. Documentation: Documentation (e.g. tutorials, FAQ’s, etc.)
8. Extension state: select the extension state to update it. (Ref. link for state: https://docs.typo3.org/m/typo3/reference-coreapi/main/en-us/Security/GuidelinesIntegrators/Extensions.html)
   1. Alpha
   2. Beta
   3. Stable
   4. Experimental
   5. Test
9. Select the Typo3 version of your project: select the TYPO3 version of your TYPO3 setup where you want to add the extension.
10. Select the icon for your extension: select the icon for your extension, else the default icon will be set for your icon.

3. After filling out all the details, click on the “Save & Next” button.

4. When you click on the “Save & Next” button, the extension will be saved in a draft.