Advanced RMA

Use Cases Generate Return Material Authorization (RMA) from Posted Sales Invoice/Shipment (PSI) , or Posted Vendor Invoice/Shipment (PPI) RMA can be used to track Return from Customer, Return to Vendor, or BOTH. If RMA generated from PSI, then when it creates the RMA Lines, it will know all the base information (customer, sale date, sale price, cost, vendor info) and that will automatically be updated on the RMA. User can manually override any of that data if it needs to be corrected without affecting original PSI/PPI. RMA will have timeline of communication just like the CRM Contact timeline. RMA will have document attachments just like CRM contact.  (we can also add zetadocs factbox to save documents too) Ability to track workflow (status) of RMA, from issuance to Customer, to receiving, to crediting customer, then rma from vendor, shipment to vendor, credit from vendor (this will help to keep things from falling thru the cracks especially on the vendor side). Creation of Sales Ret