> ## Documentation Index
> Fetch the complete documentation index at: https://docs.slm.m1amdocs.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Key Concepts and Best Practices

* **[Set Up Local Data Cache of Products to Display on Your Online Storefront](../topics/2201_r_displayProductOffers#)**\
  Your online storefront must maintain a local cache of products and billing plans to display to the subscriber during the checkout process. To support this functionality, you must use the Subscribe APIs.
* **[Manage Grace Period And Retry Strategy for Failed Payments](../topics/2803_r_manageGracePeriod#)**\
  You can increase subscriber retention by retrying payment processing for subscriptions that fail payment collection at renewal time. To support this functionality, you must define a grace period and retry strategy through Vindicia support.
* **[Define Taxation Rules for Purchases](../topics/2805_r_taxation#)**\
  You must ensure appropriate sales/use taxes are included in subscriber purchases. To support this functionality, you must configure the taxation settings through Vindicia support.
* **[Screen Subscribers for Potential Fraud During Purchase](../topics/2212_r_screenCustomers#)**\
  You can use the MarketONE Subscribe built-in fraud screening to detect and prevent fraudulent purchases of subscriptions. To support this functionality, you must use the Subscribe APIs.

**Parent topic:**[Concepts & Precepts](../topics/tp_conceptsPrecepts)


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