Odata Endpoint that works in Postman doesn't work with config for Mesh

[motleydev]

Hi, I'm trying to connect ann Odata endpoint from SAP, and using the ApiKey provided by the sandbox environment, I can make a successful query in Postman but get an error response from the server (SAP Error) when trying from my .meshrc file.

How can I better debug this? Here's my config

sources:
  - name: SAP
    handler:
      odata:
        endpoint: https://sandbox.api.sap.com/s4hanacloud/sap/opu/odata4/sap/api_drctactivityallocation/srvd_a2x/sap/directactivityallocation/0001/ActivityAllocation?$top=50
        schemaHeaders:
          APIKey: "<secret>"