---
title: SubscriptionContractCalculationAnchorInput - GraphQL Admin
description: >-
  The input fields for subscription contract anchors used for contract
  calculation.

  This is a oneOf input: one, and only one, field can be provided.
api_version: 2026-10
source_url:
  html: >-
    https://shopify.dev/docs/api/admin-graphql/latest/input-objects/SubscriptionContractCalculationAnchorInput
  md: >-
    https://shopify.dev/docs/api/admin-graphql/latest/input-objects/SubscriptionContractCalculationAnchorInput.md
api_name: admin
api_type: graphql
type: input-object
---

# Subscription​Contract​Calculation​Anchor​Input

input\_object

The input fields for subscription contract anchors used for contract calculation. This is a oneOf input: one, and only one, field can be provided.

## Fields

* monthday

  [Subscription​Contract​Calculation​Monthday​Anchor​Input](https://shopify.dev/docs/api/admin-graphql/latest/input-objects/SubscriptionContractCalculationMonthdayAnchorInput)

  Anchor to a specific day of the month.

* weekday

  [Subscription​Contract​Calculation​Weekday​Anchor​Input](https://shopify.dev/docs/api/admin-graphql/latest/input-objects/SubscriptionContractCalculationWeekdayAnchorInput)

  Anchor to a specific day of the week.

* yearday

  [Subscription​Contract​Calculation​Yearday​Anchor​Input](https://shopify.dev/docs/api/admin-graphql/latest/input-objects/SubscriptionContractCalculationYeardayAnchorInput)

  Anchor to a specific day of the year.

***

## Input objects using this input

* [Subscription​Contract​Calculation​Billing​Policy​Input.anchors](https://shopify.dev/docs/api/admin-graphql/latest/input-objects/SubscriptionContractCalculationBillingPolicyInput#fields-anchors)

  INPUT OBJECT

  The input fields for subscription billing policy used for contract calculation.

* [Subscription​Contract​Calculation​Delivery​Policy​Input.anchors](https://shopify.dev/docs/api/admin-graphql/latest/input-objects/SubscriptionContractCalculationDeliveryPolicyInput#fields-anchors)

  INPUT OBJECT

  The input fields for subscription delivery policy used for contract calculation.

***

## Map

### Input objects using this input

* [Subscription​Contract​Calculation​Billing​Policy​Input.anchors](https://shopify.dev/docs/api/admin-graphql/latest/input-objects/SubscriptionContractCalculationBillingPolicyInput#fields-anchors)
* [Subscription​Contract​Calculation​Delivery​Policy​Input.anchors](https://shopify.dev/docs/api/admin-graphql/latest/input-objects/SubscriptionContractCalculationDeliveryPolicyInput#fields-anchors)