Dear Support,

I'm using client credentials grant login which works fine.

write-host '#devices'

$reqDevices = Invoke-RestMethod -SkipCertificateCheck -SkipHeaderValidation -Uri "$OMADA_URL/openapi/v1/$omadaCid/sites/$SITE_ID/devices?page=1&pageSize=100" -Method Get -Headers $RequestHeaders #-WebSession $OmadaSession

#devices

$reqDevices.result.data | ft

this works perfectly

BUT:

write-host '#clients'

$reqClients = Invoke-RestMethod -SkipCertificateCheck -SkipHeaderValidation -Uri "$OMADA_URL/openapi/v2/$omadaCid/sites/$SITE_ID/clients?page=1&pageSize=100" -Method Get -Headers $RequestHeaders #-WebSession $OmadaSession

#clients

$reqClients.result.data | select name,mac | write-host

gives an error:

Invoke-RestMethod: /Volumes/Media/python/omada/omada-openapi.ps1:89:15                                                  
Line |
  89 |  … eqClients = Invoke-RestMethod -SkipCertificateCheck -SkipHeaderValida …
     |                ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     |  {   "timestamp": 1776723123082,   "status": 405,   "error": "Method Not Allowed",   "path": "/openapi/v2/38ce6a8f70770e7cfac68966....../sites/69e0a50642803......./clients" } (I shortened the omada id and site id)

with this I can no longer retrieve any clients. This was the case though all beta/early releases of 6.2 SW controller.

btw: this also applies for. /api/v2 using "${OMADA_URL}/${CONTROLLER_ID}/api/v2/sites/${SITE_ID}/clients?currentPage=1&currentPageSize=100"  also general error