When running Cisco Prime discovery using adapter Cisco Prime by Web Services, despite the credentials being correct, the job finishes with success state but no CI's are discovered and in the communication log the following warnings are observed :
Failed to get data, return AccessPoints: No JSON object could be decoded
Failed to get data, return InventoryDetails: No JSON object could be decoded
This particular issue is a known issue fixed in content pack 2019.11 .
Please refer to knowledgbase article KM03512483/QCCR1H127279 and this link:https://docs.microfocus.com/itom/Universal_Discovery_Content_Pack:2019.11/CPFixedDefects