> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.stock-sync.com/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# Stock Sync Billing Charges and issue


* The billing date on your invoice starts the day you subscribe to any plans in Stock Sync.
* Stock Sync fees are charged on the standard 30-day invoice cycle that begins when you start your subscription.
* Stock Sync charges are pro-rata. So users would not lose time in their current plan, and the limit would be raised according to the plan if they chose to upgrade their plan.
      
||| The total variant(s) is not the same as the total product(s)

* Stock Sync by default will take all variants on your store to find the matching SKU.
* That translates to more variants on the store requiring more memory and processing power to process and find the matching variant.
* If you have only 50 products and about 300 variants, you only have to pay $5 per month. You may reduce the number of variants loaded by applying Filter by Shopify Products.
      
| For example, a store has products under Brand A and Brand B. Brand A has 100 variants, and Brand B has 20 variants. If the Vendor filter includes Brand B only, it will only process 20.