Procurement
If you are looking here, you have one or more contracts already, so you know about procurement, and we'll continue from there. For reference, you should refer to your local Procurement Technical Assistance Center (PTAC)

Central Contractor Registry (CCR)      http://www.ccr.gov
To start, your Commercial and Government Entity (CAGE) code is the key to everything in Electronic Commerce. Your CAGE code is your electronic definition to the Department of Defense, as well as any other entity that uses the Electronic Commerce applications to administer contractor/vendor invoicing/payment processes. With your registration in the CCR, you define who you are, where you are, what you do, and where you are to get paid, including the electronic funds transfer information to pay you. This needs to be renewed every year, and updated when you make changes. Since it feeds all the other EC applications, if it expires, you will not be able to do anything!

Wide Area Work Flow Receipt and Acceptance       https://wawf.eb.mil
This is the actual production Wide Area Work Flow (WAWF) website. To use this, you will have to "Self-register" on the bottom of the site. Do not even start this until you have a soft copy of your DD Form 2875 (if you are a Government agent) which you will attach on the "attachment" page of the registration process, but if you are a vendor, go ahead, ignoring the DNS telephone number and the rank part on the first page, and the comments and attachments on the page after the CAGE or DoDAAC page. DO NOT FORGET TO CHOOSE THE CORRECT ROLE! At that time, go ahead, verify your information on the last page, check the "Statement of Accountability", and submit. When you do, you'll get a long paragraph about completing your registration, ending with how you'll get access. What they DO NOT explain is that you will not get activated until: 1) if contractor/vendor, your Electronic Business Point Of Contact (EBPOC) from the CCR (remember how we said it all relates?), sends authorization to activate your account to the Ogden Systems Help Desk, CSCASSIG@CSD.DISA.MIL If you are a government agent, your Group Administrator (GAM) will activate you - they will have received an email that you have registered at the time you do so.

Wide Area Work Flow Training Site       https://wawftraining.eb.mil
This is a training site, with a copy of the actual application, it gives you login numbers so you can practice if you'd like, without actually committing anything in the "real" world.

Wide Area Work Flow Web-Based Training Site       https://www.wawftraining.com
This site has web-based training. It will give you good vocabulary, some shots of the actual screens, and general familiarity with the application.

DoD Electronic Commerce       http://www.dod.mil/dfas/contractorpay/electroniccommerce/ECToolBox.html
This site is a compilation of references and guides to Electronic Commerce built by the Defense Finance and Accounting Services (DFAS) to support Electronic Commerce processes.

Electronic Document Access (EDA)       http://eda.ogden.disa.mil/
The key to filing your invoices successfully for the DoD is following the contract. EDA is the site where all contracts with the DoD should be posted, security considerations permitting. This is important for multiple reasons: 1) EDA feeds WAWF, and saves you both keystrokes and errors in submission in WAWF; 2) EDA also feeds the OTHER EC applications, including the various entitlement (pay) systems, so if there has been any error in your contract getting to the correct entitlement system, the contract can be found in EDA by the entitlement systems. If you are registered in EDA (instructions on the web page, and they are based on your CAGE code if you are a contractor/vendor), you can verify your contract is in EDA, verify the terms of the contract, verify if any modifications have been made that affect how you submit your invoicing, and know to contact your Contracting Officer to post your contracts if they have not already done so, which will speed your payment process.

MyInvoice       https://myinvoice.csd.disa.mil/index.html
MyInvoice provides you with the final monitoring of your payment process. This is the site where current status of payments, as provided by the entitlement systems themselves, are posted, once the invoicing has been successfully delivered by the WAWF process. If there are any hold-ups beyond WAWF, they will show up here. Registration instructions are provided on the site for both vendors and government agents.