Before writing this post i tried all possible solution available on SCN & internet.
In sales order overall status (GBSTK) is Being processed after doing complete delivery and Billing.
I tried many things changed the completion rule also run the program SDVBUK00 but the status is not updated to complete.
Created 1 sales order with 1 material without any reference then done PGI for 1 material then done billing successfully.
In table VBUK / VBUP the field GBSTK / GBSTA showing Being processed, for delivery and invoice its showing completed "C".
I checked the Incompletion Log also there is nothing pending.
Please refer screenshots and provide me solutions.
Thanks in advance.