> ## Documentation Index > Fetch the complete documentation index at: https://docs.partnero.com/llms.txt > Use this file to discover all available pages before exploring further. # Transactions & Protection settings Partnero allows you to set rules for customer transactions (sales) to define what constitutes a fraudulent transaction. These settings are available for affiliate and refer-a-friend programs. *** ### Available settings The following settings are available: 1. **Allow self-referring sales **By default, Partnero marks a transaction as \_**fraudulent**\_ if the referral's and affiliate partner's (or customer's) email addresses match. This is to prevent self-referral. However, if in your program, it's agreed that affiliates can create accounts and make purchases on behalf of their customers, you can allow self-referring sales. 2. **Prevent multiple transactions** This setting restricts customers from making multiple transactions within a specified period. For example, one customer can make no more than one purchase within 60 seconds. 3. **Reject referrals from paid ads** If enabled, signups originating from paid advertisements will be ignored. Such signups are recognized by automatically checking referral data for UTM parameters, HTTP header tags, and Google Click Identifiers (GCLID) & Facebook Click Identifiers (FBCLID). *** ### How to change transaction settings 1. Open the program you'd like to work with and navigate to **Settings** under **Program**. 2. Scroll down to the **Transactions & Protection** section and toggle the settings based on your preference: 3. Click **Update**. This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.