Create your Custom App in Infor OS

When your custom app imports the DocBits API specification, use the Swagger 2.0 specification (/openapi-swagger2.json), not the OpenAPI 3.0 one. Infor OS's older swagger-ui needs the 2.0 dialect to build file uploads correctly — otherwise uploads fail with 400 — Missing boundary in multipart. See Infor OS with DocBits API Integration for the full explanation and how to copy the URL.