> ## 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.

# Initial Load of Historic Data

Before Vindicia can begin processing your chargebacks, you must send an initial set of transactions to be loaded into ChargeGuard. Because chargebacks are typically issued by the customer within 30 to 90 days after the transaction, ChargeGuard must have at least 90 days’ worth of data to begin.

**Note:** This data requirement applies to first-time ChargeGuard subscribers only. If you already subscribe to Subscribe, Vindicia has your transaction data and you need not resend it. However, we strongly recommend that you send us the historical activity data, which often serves as valuable background information for chargeback disputes

The Subscribe API allows you to report a vast array of information on your transactions and customer activity. Although many data items are optional, providing Vindicia with more information increases the success rate of winning chargeback disputes.

**Parent topic:**[Data Reporting to Vindicia](../topics/Data_Reporting_to_Vindic)


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