When Option Price Calculator creates new Shopify variants we also store the customer selected options in a hidden variant level metadata field.
This can come in handy if something goes wrong and you want to see how the options were set.
It can also be used for troubleshooting in some cases.
To access this variant data you can do the following:
In Shopify admin, edit the product that the Option Price Calculator variant is related to.

2. Edit the specific “opc-” variant.

3. In the Metafields section click View all.

If you do not see a metafields URL, you can append the following to the end of the current variant url in your browser:
Example Variant URL:
https://admin.shopify.com/store/option-price-calculator/products/15028739670176/variants/52300898042016
Append the following to the end:
/metafields/unstructured
Making the new URL:
https://admin.shopify.com/store/option-price-calculator/products/15028739670176/variants/52300898042016/metafields/unstructured
4. Click View unstructured metafields button.

5. Here you will find the opc.Variants_Details which will contain all selected options and their associated costs.

Keep in mind if you do not yet have any variant level metadata you may not see the metadata section on the product variant. If this is the case you will have trouble navigating to the unstructured metadata section. In this case you can get here by using the following URL pattern.
https://admin.shopify.com/store/<YOUR STORE NAME>/products/<PRODUCT_ID>/variants/<VARIANT_ID>/metafields/unstructured
Example URL:
https://admin.shopify.com/store/option-price-calculator/products/15028739670176/variants/52300898042016/metafields/unstructured
If you open the specific variant in Shopify most of the specific values will be in the URL:
https://admin.shopify.com/store/option-price-calculator/products/15028739670176/variants/52300898042016