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# Create and customize Base Calendar for Admission

> Assigning and customizing a base calendar is a simple approach to making exceptions in regards to a time when a time-slot should be closed rather than open.

These exceptions can be applied to [<ins>various ticketing entities</ins>](/product/Attraction-ticket-base-calendar).

To create and customize the base calendar for an admission, follow the provided steps:

1. Search for **Ticket Admission**, and choose the related link.

2. For the **Admission Code** you should assign an **Admission Base Calendar**, so find the field **Admission Base Calendar Code**, and select the relevant **Base Calendar Code** from the dropdown list.

   * With this setting, all dates marked as non-working by the **Base Calendar** will also mark the related time-slots as closed.
   * Note that it is required to recalculate the time-slot entries for the change to take effect.

To make a specific change for this admission code, the **Base Calendar** needs to be customized:

> **Note:** Adjacent to the **Admission Base Calendar Code** field, you can find the **Admission Customized Calendar** flow field. Its value is either **Yes** or **No** depending on whether this admission code has customizations or not.

3. Click the value in the **Admission Customized Calendar**.\
   A page showing the merged result of base calendar and customizations for this admission code is displayed.
4. Click the **Edit** icon on top to make the page editable.
5. Mark a date in the list as non-working.
6. Enter a description, and state why this date is non-working.
7. Close the page.

> **Warning:** When customizing the admission base calendar or the underlying base calendar, it is required to recalculate the time-slot entries for the change to take effect.

The process is identical for assigning and customizing the **Base Calendar** for:

* Admission
* Admission Schedule
* Admission Schedule Lines
* Ticket BOM

#### See also

* [<ins>NP Designer</ins>](/product/Attraction-ticket-ticket-designer)
* [<ins>Set up DIY printed tickets</ins>](/product/Attraction-ticket-diy-printed-ticket)
* [<ins>Set up tickets using the Ticket Setup Wizard</ins>](/product/Attraction-ticket-ticket-setup-wizard)
* [<ins>Admit an issued ticket</ins>](/product/Attraction-ticket-admit-issued-ticket)
* [<ins>Create prepaid tickets</ins>](/product/Attraction-ticket-create-prepaid)
* [<ins>Create postpaid tickets</ins>](/product/Attraction-ticket-create-postpaid)