Add to cart not working
There are three main reasons we see the Add to Cart button may not be working on your product page after embedding the calculator:
- Additional variants on the product page
- Shopify variants being connected to metafields
- Shopify theme having unusual code
The great thing is - we are usually able to resolve this by:
First, try removing any variant on the Shopify product.
- If the calculator still not adding to the cart then there will be some customization needed. Please email us at [email protected] with the URL to the product page and we will try to resolve this for you.
Resolving the "An error occurred during the request: error" Issue
Sometimes you will encounter this error.
If you encounter the error message "An error occurred during the request: error", it typically indicates an issue with meta fields being connected to your variants.
By default, when a default variant is added, meta fields are automatically connected. However, the store should not have meta fields connected to variants.
To resolve this issue, users must explicitly disconnect the meta fields from the variants to avoid the error from occurring.
Cart Drawer Compatibility
Unfortunately, the Custom Price Calculator app does not currently support cart drawers. This limitation occurs because Shopify introduces a delay when creating new variants, which prevents them from displaying properly in the cart drawer.
A cart drawer provides customers with all the information they need about their order in one place, including:
- Price
- Product availability
- Shipping options
- Payment methods
Because of this Shopify limitation, we recommend disabling cart drawers when using our app to ensure a smooth checkout experience.
Updated on: 27/08/2025
Thank you!