Microsoft Entra ID Spoke Workflow help

[CharlieNZ]

I have added the MS Entra ID Spoke and configured it with an Entra app as per the instructions

I have a workflow where I have an action of "Look up Subscribed SKU". 
I had "Subscribed SKU ID" set to pull from the workflow. 

Getting error: 

"message": "Error:  Invalid Subscription SKU ID (Process Automation.bf6e42230b422340a6d440976877b2cd; line 7)"

I tried the same by just putting the SKU ID in. Same error.

I looked up the IDs direct from https://graph.microsoft.com/v1.0/subscribedSkus

I have tried all of these with the same result:

"skuId"

"skuPartNumber"

"subscriptionIds"

What am I doing wrong?