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Getting Your PayPal REST API keys

Prior to version 2018-7, FusionInvoice used PayPal's classic NVP/SOAP api. Version 2018-7 and later use PayPal's REST api.

Log into the PayPal Developer portal using your standard PayPal credentials.

Click the Create App button in the REST API apps section of the My Apps & Credentials page.

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Give the app a name, such as FusionInvoice (or whatever you'd like) and click the Create App button.

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Once the app is created, the Client ID and Secret ID can be obtained. Note there is an option to switch between the keys for Sandbox and Live. Be sure and use Sandbox for testing purposes and Live for production. Also note the Secret ID spans two lines, so be sure the entire key gets copied. Configure the keys in FusionInvoice on the Online Payments tab in System Settings.

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