Creation of customer account fails with the following error:
" HTTP server returns error with code art_ptr/shared_ptr.hpp Resource with UID 'XXX'"
The issue is caused by #PBA-83177 "Cannot create Customers after upgrade from 7.2 to 7.3 due to error related to "customerClass"". Usually this issue appears due to the fact that some of required entities are not synchronized between OA and BA.
To fix the issue check OA periodic task "Billing APS entities synchronization" last execution results at Operatios - Tasks - Periodic - "Billing APS entities synchronization"
Task should not be failed and the period for its execution should be set from 1 second up to 1 minute. If the period is more than 1 minute - manually run the task. After task is executed try to create an account.
In case if issue will be still presist after task was manually run, please contact Odin Technical Support to apply workaround.