> ## Documentation Index > Fetch the complete documentation index at: https://docs.slm.m1amdocs.com/llms.txt > Use this file to discover all available pages before exploring further. # Working with Season Sets From this page, you can define your seasons, their description and Start and End dates as well as relevant custom data Name-Value Pairs. **Tip:** Remember that in order to rebill the subscription for the next season, you must add a new season to the set. To work with a Season Set: 1. Select your starting point from the following options: * To create a new Season Set, click the **+ New** button and select **Season Set**. * To duplicate an existing Season Set, select the relevant existing Season Set from **Catalog** > **Season Sets** and click **Duplicate**. * To edit an existing Season Set, select the relevant existing Season Set from **Catalog** > **Season Sets** and click **Edit**. The Season Set page appears. Subscribe Season Set Example 2. Define the Season Set fields as needed. Refer to the tables below for guidance regarding the fields. 3. When you're done, click **Save** or **Update**. You can return and continue editing the saved Season Set at any time * **[Season Set Details Pane](../topics/seasonSetWorking1#)**\ A Season Set is basically a list of seasons. Each Season is simply a **Description**, **Start** and **End Date**. Season Sets allow you to bill and provide active entitlements during a defined time-frame (a sport's or TV content **season**), and not at other times of the year. * **[Custom Data](../topics/seasonSetWorking1#)**\ Custom data lets you store merchant-specific data to Products, Rate Plans, Billing Plans, Season Sets, Subscriptions, Accounts, and Payment Methods as a pair of matched text strings, called name-value pairs. These name-value pairs can help you categorize and sort aspects of your objects. Use **Name** to define a category, and **Value** to define a specific item in that category. For example, you could use name-value pairs to track your sales teams. Define a name-value pair with Office as the **Name** and the city in which the office is located as the **Value**. **Parent topic:**[Season Set](../topics/seasonSetAbout) ## Season Set Details Pane A Season Set is basically a list of seasons. Each Season is simply a **Description**, **Start** and **End Date**. Season Sets allow you to bill and provide active entitlements during a defined time-frame (a sport's or TV content **season**), and not at other times of the year. | Field | Guidance | Relevancy | | - | - | - | | **ID** | Your unique ID for the entire Season Set. The ID can't be changed or reused. **Note:** use of the forward slash character (/) in merchant identifiers is not allowed. | Required | | **Description** | A meaningful and unique description of the season. A description is required for each season. | Required | | **Start Date** | First day of the Season. | Required | | **End Date** | Last day of the Season. | Required | | **Parent topic:**[Working with Season Sets](../topics/seasonSetWorking1#) | | | ## Custom Data Custom data lets you store merchant-specific data to Products, Rate Plans, Billing Plans, Season Sets, Subscriptions, Accounts, and Payment Methods as a pair of matched text strings, called name-value pairs. These name-value pairs can help you categorize and sort aspects of your objects. Use **Name** to define a category, and **Value** to define a specific item in that category. For example, you could use name-value pairs to track your sales teams. Define a name-value pair with Office as the **Name** and the city in which the office is located as the **Value**. | Field | Guidance | Relevancy | | - | - | - | | **Name** | Name is the field for defining metadata. It is unique and once submitted can't be changed. 1. Place your cursor in the selection box and either select from existing Names or enter a new Name. 2. For a new entry , click **Create New:** 3. Enter a Value for the Name. 4. Click **Add** to save this pair. **Note:** - Name field is limited to 255 characters. - System generated parameters use the prefix **vin** in the name field. | Required if adding custom data | | **Value** | 1. Once you've selected/created a Name 2. Enter the category's Value in the corresponding field. 3. Click **Add** to save this pair. **Note:** Value field is limited to 255 characters. | Required if adding custom data | | **Parent topic:**[Working with Season Sets](../topics/seasonSetWorking1#) | | | This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.