Google Ads & Merchant Center Showing Wrong Product Price Instead of Shopify Sale Price

I need an experienced Shopify and Google Merchant Center expert to help resolve a product pricing issue.

Issue:

Product regular price: $149
Product sale price: $89
Shopify correctly displays the sale price.
However, Google Merchant Center and Google Ads are still showing $89 as the main product price.
The issue has persisted for more than 48 hours.

What I Need:

Diagnose the root cause of the pricing mismatch.
Check Shopify product schema, feed settings, and Google Merchant Center configuration.
Verify sale_price and price attributes in the product feed.
Ensure Google Ads and Merchant Center display the correct sale price.
Fix any feed, structured data, or synchronization issues.

Requirements:

Proven experience with Shopify, Google Merchant Center, and Google Shopping Ads.
Ability to troubleshoot feed and pricing discrepancies.
Please explain your approach and estimated time to resolve the issue.

I can provide access, screenshots, and additional details as needed.