There are 4 different guides that you may want to utilise at different times. They each contain unique information depending on your situation.
Setup Guide
This is the first guide you will need, and is for when you are first installing PosiPay into your Salesforce org. It will walk you through installing PosiPay into a new or existing org, establishing the baseline PosiPay configuration and connecting your Stripe account. Go to Setup Guide
Review and customise the baseline configuration to client’s specific needs. Enhance existing or create new objects, page layouts, flows and other assets. Customise and/or deploy unmanaged PosiPay assets to meet client’s needs. See Configuration Guide .
Manage the provided PosiPay environment and provide security; data creation, update and transfer; workflow refinements and other functions on an ongoing basis. See Administration Guides.
Use - Utilise Salesforce and PosiPay capabilities on a daily basis as provided. See User Guide.