Why a specific document type is not available in SAP Integration Suite, managed gateway for spend management and SAP Business Network Mapping Tool ?

In order to have the document type available in the Managed Gateway for Spend&Network mapping tool you need to have at least one project created and deployed to In Testing status for the related Product.

Follow below steps to create and deploy a Managed Gateway for Spend&Network Project:

1. Log in to Managed Gateway for Spend&Network.
2. Click My Configuration > Projects.
3. Click Create a New Integration Project, for example, for procurement.
4. In the Project Wizard Add New Connections and Click Next till you confirm and deploy the project in test environment.
5. Once Deployed the Project will be In Testing Status.
6. Now Click My Configuration > Mappings.
7. You should be able to see documents related to the project you created, in this example, procurement related document types.

SAP Integration Suite Managed Gateway > Managed Gateway for Business Network SCC > Managed Gateway for Buyer Business Network SCC
SAP Integration Suite Managed Gateway > Managed Gateway for Procurement