Every time a notification is sent to an application, a transaction is recorded and available on the endpoint /transaction_logs
For instance, you can find there the return status from accounting applications API, this can be useful for debugging purposes.
You can use filtering when requesting this endpoint
Get 100 records starting from record number 150
https://api-connec.maestrano.com/api/v2/GROUP_ID/transaction_logs?$top=100&$skip=150
Get the first 10 records for organizations updates
https://api-connec.maestrano.com/api/v2/GROUP_ID/transaction_logs?$top=10&$filter=entity_name eq 'Organization'