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Material Transactions causing the MTL_ITEM_LOCATIONS to Lock in WIPTXMAT form (Doc ID 431168.1)

Last updated on FEBRUARY 02, 2022

Applies to:

Oracle Work in Process - Version to 12.2.9 [Release 11.5 to 12.2]
Information in this document applies to any platform.


On when multiple Users are performing transactions in WIP Material Transaction form, the MTL_ITEM_LOCATIONS table becomes locked. Users sessions then wait for exclusive lock on MTL_ITEM_LOCATIONS while one other session is holding the exclusive lock.


Expect a better performance


The issue can be reproduced at will with the following steps:
1. Responsibility Enterprise Assets Management => Work Order Transactions => Material Transactions.  Then push Open button.
2. On material transactions form choose one "Work Order" from LOV. Press ok on LOV. Then push "Continue" button on "material transaction".
3. Next form "WIP component issue" takes 20-30 minutes to open on peak hours.
On peak hours 50-80 users are accessing that form WIPTXMAT.fmx. Accesed by only 10-15 users same time the problem not occurs.


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