Using zapp.yaml file in the IBM open editor to expand and retrieve copybooks.
When package does not have any copybook in a staging dataset, the retrieval works successfully. When a copybook exists in the staging dataset, the retrieve of copybooks fails.
Click on source code in a ChangeMan package. Select Yes.
Select Yes.
From the log file, we debug on.
[2026/06/01 14:28:51.462] [DEBUG] [extensionHostProcess.js:502] Getting token session - zmf_serzmfp
[2026/06/01 14:28:51.464] [DEBUG] [extensionHostProcess.js:502] Allocated token - 887A13591D219BDF3DCA0E6060966351
[2026/06/01 14:28:51.466] [DEBUG] [extensionHostProcess.js:502] CommonRest -createResource /component/source-include/nolocate?package=CH03000071&sourceComponent=CHGSECR1&SourceComponentType=SRC
[2026/06/01 14:28:51.536] [DEBUG] [task_queues:103] Releasing token session - 887A13591D219BDF3DCA0E6060966351
[2026/06/01 14:28:51.538] [DEBUG] [task_queues:103] Getting token session - zmf_serzmfp
[2026/06/01 14:28:51.540] [DEBUG] [task_queues:103] Allocated token - EFEAD5C3C0FCA32A0CBB17F592318094
[2026/06/01 14:28:51.541] [DEBUG] [task_queues:103] CommonRest -createResource /component/source-include/locate?package=CH03000071&sourceComponent=CHGSECR1&SourceComponentType=SRC
[2026/06/01 14:28:51.600] [DEBUG] [task_queues:103] Releasing token session - EFEAD5C3C0FCA32A0CBB17F592318094
[2026/06/01 14:28:51.601] [DEBUG] [task_queues:103] CommonRest -createResource /logon
[2026/06/01 14:28:51.604] [DEBUG] [task_queues:103] CommonRest -createResource /logon
[2026/06/01 14:28:51.685] [DEBUG] [task_queues:103] Component CHGSECR1 created 2 temporary sessions
[2026/06/01 14:28:51.687] [DEBUG] [extensionHostProcess.js:504] CommonRest -createResource /component/browsedependencies?dsName=CMNP.STGE.CH03.%23000071.CPY&memberName=XMLCGCSC&restAuthToken=2a76947f-6c77-407e-bb27-1ddae2a1426a
[2026/06/01 14:28:51.689] [DEBUG] [extensionHostProcess.js:504] CommonRest -createResource /component/browsedependencies?dsName=NOT%20FOUND&memberName=XMLYGCSC&restAuthToken=2a76947f-6c77-407e-bb27-1ddae2a1426a
[2026/06/01 14:28:51.756] [ERROR] [task_queues:103] Fatal error occurred
HTTP(S) error status "400" received.
Review request details (resource, base path, credentials, payload) and ensure correctness.
Protocol: https
Host: mf-test..com
Port: 8000
Base Path: /zmfrestp
Resource: /component/browsedependencies?dsName=NOT%20FOUND&memberName=XMLYGCSC&restAuthToken=2a76947f-6c77-407e-bb27-1ddae2a1426a
Request: GET
Headers: [{"Accept-Encoding":"br, deflate, gzip"}]
Payload: undefined
{"message":"Required value not supplied for parameter(applName)","reasonCode":"400","returnCode":"400"}
[2026/06/01 14:28:51.758] [ERROR] [task_queues:103] [x4 [Error]: Rest API failure with HTTP(S) status 400
at M4.populateError (c:\Users\xxx9999\.vscode\extensions\rocketsoftware.zmfexplorer-2.0.10\out\extension.js:879:233)
at e (c:\Users\xxx9999\.vscode\extensions\rocketsoftware.zmfexplorer-2.0.10\out\extension.js:856:6954)
at M4.onEnd (c:\Users\xxx9999\.vscode\extensions\rocketsoftware.zmfexplorer-2.0.10\out\extension.js:856:7195)
at IncomingMessage.<anonymous> (c:\Users\xxx9999\.vscode\extensions\rocketsoftware.zmfexplorer-2.0.10\out\extension.js:856:5342)
at IncomingMessage.emit (node:events:531:35)
at endReadableNT (node:internal/streams/readable:1698:12)
at process.processTicksAndRejections (node:internal/process/task_queues:89:21)] {
mDetails: {
msg: 'Rest API failure with HTTP(S) status 400',
causeErrors: '{"message":"Required value not supplied for parameter(applName)","reasonCode":"400","returnCode":"400"}',
source: 'http',
errorCode: 400,
protocol: 'https',
port: 8000,
host: 'mf-test..com',
basePath: '/zmfrestp',
httpStatus: 400,
errno: undefined,
syscall: undefined,
payload: undefined,
headers: [ [Object] ],
resource: '/component/browsedependencies?dsName=NOT%20FOUND&memberName=XMLYGCSC&restAuthToken=2a76947f-6c77-407e-bb27-1ddae2a1426a',
request: 'GET',
additionalDetails: 'HTTP(S) error status "400" received.\n' +
'Review request details (resource, base path, credentials, payload) and ensure correctness.\n' +
'\n' +
'Protocol: https\n' +
'Host: mf-test..com\n' +
'Port: 8000\n' +
'Base Path: /zmfrestp\n' +
'Resource: /component/browsedependencies?dsName=NOT%20FOUND&memberName=XMLYGCSC&restAuthToken=2a76947f-6c77-407e-bb27-1ddae2a1426a\n' +
'Request: GET\n' +
'Headers: [{"Accept-Encoding":"br, deflate, gzip"}]\n' +
'Payload: undefined'
},
mMessage: 'Rest API failure with HTTP(S) status 400'
}
