Cancellation order for Reseller's subscription fails with non-informative error:
Removing of Service of Subscription #XXX is failed. Stop service of Order Item #YYY failed.
Clear error can be obtained from
/var/log/poa.debug.log on POA managemenet node:
Unable to disable subscription #XXX: there are service templates based on its resources.
During cancellation of Reseller's subscription, POA checks if there are any Service templates create on resources of such subscription, and if it founds any - cancellation order fails.
Please, remove first a Service template that uses resources from the Reseller's subscription (Customer's subscription and Plans in PBA-E created based on such template should be deleted as well) or remove the resources from service template that bound to Reseller's subscription.
Feature request #POA-67453 was created to improve this process.