In some cases you may need to import your Contracts for your Vendor Web Services and below is the most effective way of doing so:
Importing Contracts from Excel
The Excel file needs to have a header
All dropdowns need to be filled out and have data
Tools > Configure > OFDA Settings > Import From Excel > Select your Vendor > Highlight Contract Types > > Select Import from Excel
See Vendor Integrations for more detailed instructions on the different web services available in e-manage|ONE