Google Merchant Center Feed Troubleshooting

I'm currently experiencing issues with my Google Merchant Center feeds. While I am using a scheduled fetch for uploading product data, my products are not updating as they should. I need an expert to diagnose and resolve this issue urgently.

The data included in my feed consists of product descriptions, prices, inventory levels, and availability.

Ideal Skills:
- Extensive experience with Google Merchant Center
- Proficient in troubleshooting data feeds
- Familiar with scheduled fetch systems
- Able to ensure accurate inventory level updates
- Can improve product feed efficiency