3329804 - Connection to system ABC is currently not available

Symptom

During the activation of an aDSO with HANA Calculation view in HANA Studio the following error message is shown:

Also through the SM21 transaction similar message is shown for the user which tried to activate the aDSO:

Date	TIME	Instance	Type	Process Number	Client	User	Message Identifier	Message Text
01.01.2023	09:01:45	abc_server	DIA	128	100	USER_ID	BY2	Database error 258 at OPC
01.01.2023	09:01:45	abc_server	DIA	128	100	USER_ID	BY0	> insufficient privilege: Detailed info for this error can be
01.01.2023	09:01:45	abc_server	DIA	128	100	USER_ID	BY0	> found with guid '<Unique 32 character long string>'
01.01.2023	09:01:45	abc_server	DIA	128	100	USER_ID	BY2	Database error 258 at OPC
01.01.2023	01:01:45	abc_server	DIA	128	100	USER_ID	BY0	> insufficient privilege: Detailed info for this error can be
01.01.2023	01:01:45	abc_server	DIA	128	100	USER_ID	BY0	> found with guid '<Unique 32 character long string>'
01.01.2023	11:01:48	abc_server	DIA	128	100	USER_ID	BY2	Database error 258 at COM
01.01.2023	01:01:48	abc_server	DIA	128	100	USER_ID	BY0	> insufficient privilege: Detailed info for this error can be
01.01.2023	01:01:48	abc_server	DIA	128	100	USER_ID	BY0	> found with guid '<Unique 32 character long string>'
01.01.2023	01:01:48	abc_server	DIA	128	100	USER_ID	BYJ	Function COMMIT on connection DB_CONN failed
01.01.2023	01:01:48	abc_server	DIA	128	100	USER_ID	R3E	DB function DB Commit failed (return code = 1024)
01.01.2023	01:01:48	abc_server	DIA	128	100	USER_ID	BYY	Work process has left reconnect status
01.01.2023	01:01:48	abc_server	DIA	128	100	USER_ID	R47	Delete ABAP session ABAP_SESSION_ID (Info = Bad DB connection. [Error/DB]

And the relevant Work Process trace in SM51 or SM66 transactions showing similar messages in the instance abc_server Work Process number 128 (as per the example above):

B ***LOG BY2=> sql error 258 performing OPC [dbds 505]
B ***LOG BY0=> insufficient privilege: Detailed info for this error can be found with guid '<Unique 32 character long string>' [dbds 505]
B Connect to DB_CONN as DB_CONN_USER with...

Environment

HANA Database

HANA Studio

Product

SAP BW/4HANA all versions

Keywords

Privilege is missing, advanced DataStore Object, Eclipse, insufficient privilege*, Database error 258 , KBA , BW4-DM-ADSO , DataStore Object (Advanced) , HAN-DB-SEC , SAP HANA Security & User Management , BW-MT-ADSO , DataStore Object (advanced) in BW Modeling Tools , BW4-ME-HMOD , HANA Model Generation , How To

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