Symptoms
Possible scenarios:
APS-screen in CCP is loading forever. Browser console log contains the error:
{ "error": "APS::Util::Exception", "message": "Error: null value fetch." }
Order in BA fails with error:
APSC: Internal Server Error: Provision Function exception 'Rest\ResrException' with message 'Error: null value fetch.' in /usr/share/aps/php/aps/2/apsc.php:383
Cause
It can be a result of bug APS-42619 - database contains duplicate entries in aps_relation_info
table.
Resolution
Contact your Technical Account Manager or PTA team (pta@odin.com) to trace the status of APS-42619 and discuss possible workaround.