Starting Monday, July 2, 2018, MOCAS customers will no longer be allowed to submit credit card payments to repay "debt" owed to the government via Pay.gov.
FAQ web link
The myInvoice system has moved to Wide Area Workflow (WAWF). Contractors/vendors not using WAWF will need to register for WAWF in order to gain access to the new myInvoice functionality. Even invoices not submitted via WAWF will be viewable through this new capability.
All new account requests will need to be sent via myInvoice for WAWF.
To register in WAWF, please go to https://wawf.eb.mil.