topic ENQUEUE_EVVBAKE is not working in Application Development and Automation Discussions

ENQUEUE_EVVBAKE is not working

Former Member — Tue, 14 Jul 2015 06:25:44 GMT

Hi Experts

I am having a problem, i am using the lock object ENQUEUE_EVVBAKE in BSP , Please find the sample code:

CALL FUNCTION 'ENQUEUE_EVVBAKE'

EXPORTING

VBELN = PF_VBELN

EXCEPTIONS

FOREIGN_LOCK = 2

SYSTEM_FAILURE = 3.

it is working fine in the debugging mode, When i press F8 or it comes out from the debugger system release lock object automatically.

Thanks

Arjun

Re: ENQUEUE_EVVBAKE is not working

deepan_v_s — Tue, 14 Jul 2015 06:31:03 GMT

Hi Arjun,

This is due to the fact that the Sales Document is already locked by another.. Please check the user ID which is locking it and if is not your user id then ask the user to come out of edit mode.

Or else delete the lock via, SM12..

It might be also due to ENQUEUE is done properly and DEQUEUE FM is not called after completing editing of SD.

Regards,

Deepan Swaminathan.

Re: ENQUEUE_EVVBAKE is not working

Former Member — Tue, 14 Jul 2015 06:42:38 GMT

This lock is done by the code i have used . But in only debug mode after the FM called , But when I press F8 . It will release Lock automatically.

Re: ENQUEUE_EVVBAKE is not working

Former Member — Tue, 14 Jul 2015 06:43:19 GMT

This lock is done by the code i have used . But in only debug mode after the FM called , But when I press F8 . It will release Lock automatically.

Re: ENQUEUE_EVVBAKE is not working

deepan_v_s — Tue, 14 Jul 2015 06:47:30 GMT

Please execute the code without debugging and check the result.

Regards,

Deepan Swaminathan

Re: ENQUEUE_EVVBAKE is not working

sriram_korlepara — Tue, 14 Jul 2015 07:09:00 GMT

Hi,

I believe you have included DEQUEUE_EVVBAKE fm also next to this enqueue.

Try to regenerate the program and relogin again,test it.Some times this may be due to memory issues.

Let me know if the issue still persists.

Thanks,

Pawan.

Re: ENQUEUE_EVVBAKE is not working

Former Member — Tue, 14 Jul 2015 07:19:58 GMT

I have put only ENQUEUE_EVVBAKE. If i am running this FM in SE37 , It is doing the same. If i come out from this FM it will release the lock automatically

My requirement is to lock the by my program sales order until unless i will not release that lock.

Re: ENQUEUE_EVVBAKE is not working

deepan_v_s — Tue, 14 Jul 2015 07:25:03 GMT

Please use FM DEQUEUE FM in the code.

Follow these steps,

1. Use ENQUEUE FM.

2. Process the SD document and Save the document.

3.Once saving is done, please use the FM DEQUEUE_EVVBAKE, to release the lock.

Try this and it will solve the issue.

Regards,

Deepan Swaminathan.

Re: ENQUEUE_EVVBAKE is not working

Former Member — Tue, 14 Jul 2015 07:32:21 GMT

Hi all

I have design a custom UI via BSP. Now i want if user will open any sales order in UI than it should not be editable any other user in UI and SAP.

So i want to lock the sales order if that is open in UI.

Thanks

Arjun

Re: ENQUEUE_EVVBAKE is not working

deepan_v_s — Tue, 14 Jul 2015 07:36:35 GMT

Yes Arjun, i understand the requirement.

But what if the user saves the UI or closes the UI. In that case lock should be released.

If it is not released, then the lock will be there in the document forever. (Even if the same user tries to open the Document in different session, error message will be displayed informing that SD is already locked)

So you need to call the DEQUEUE FM, ince the user completes his work in UI.

Regards,

Deepan Swaminathan.

Re: ENQUEUE_EVVBAKE is not working

Former Member — Tue, 14 Jul 2015 10:22:03 GMT

Hi Deepan

Exactly i have also develop a BSP to release the lock. But my first BSP is not working to lock the Sales Order. That is the main problem for me.

In the debug mode it will lock the SO after execution of SO, But when after FM execution when i press F8 it will release the lock automatically.

Regards

Arjun

Re: ENQUEUE_EVVBAKE is not working

deepan_v_s — Tue, 14 Jul 2015 10:35:44 GMT

Hi Arjun,

Place an external break point just before DEQUEUE FM and check if the Document is locked.

Check it from UI, Place external break point.

Regards,

Deepan.

Re: ENQUEUE_EVVBAKE is not working

Former Member — Tue, 14 Jul 2015 10:51:48 GMT

I have put the break point ,yes the object is locked. But when i execute further it will release the lock automatically. I have also checked in SM12 also.

Even i have commented the DEQUEUE FM in my BSP but Don't know why the lock object is releasing.

Re: ENQUEUE_EVVBAKE is not working

sriram_korlepara — Tue, 14 Jul 2015 11:05:49 GMT

Hi Arjun,

Initailly the Enqueue Fm(incorporated by you) is locking the sale order.

First try to identify where the lock is getting released.

I believe there is some standard code which is releasing the lock.If you want to to lock it or release it as per your requirement,try to put your code next to standard code using some enhancements.

Since you are calling from portal,i cannot replicate the issue in my system

Re: ENQUEUE_EVVBAKE is not working

Former Member — Wed, 15 Jul 2015 11:56:39 GMT

Hi Everyone

Please provide me a solution.

Re: ENQUEUE_EVVBAKE is not working

sriram_korlepara — Wed, 15 Jul 2015 12:06:43 GMT

Hi Arjun,

Have you tried the way that I suggested above.

regards,

Pawan.

Re: ENQUEUE_EVVBAKE is not working

Former Member — Wed, 15 Jul 2015 12:21:00 GMT

Hi All

I have found on thing, In the debugger it is working fine , Because Lock object is active for the session when we execute the debugger or F8 it will release the lock automatically.If we can keep that session that it is possible.

So now how can i make a session active ?

Thanks

Arjun

Re: ENQUEUE_EVVBAKE is not working

Juwin — Wed, 15 Jul 2015 12:52:07 GMT

Thats my understanding too - Locks are released automatically when the program execution is finished.

Ideally, you shouldn't be locking the sales order when the person opens it in a browser. Because he may just close the browser window and your program may be still holding the lock on the order. My suggestion would be to change the design of the program ....

1. User opens the order

2. User makes changes to the order and presses save

3. This triggers PAI event

4. Lock the order, Make changes to order, Unlock order

5. If lock fails, then wait and repeat for a certain amount of time. If still not successful, then display message to user

5. Refresh user display

Thanks,

Juwin

Re: ENQUEUE_EVVBAKE is not working

Former Member — Wed, 15 Jul 2015 15:31:50 GMT

If you want the lock to be carried onto the V1 processes you have to set the _SCOPE = '3'. By default it takes '2'.

Explanation : ( From SAP Documentation ).

http://help.sap.com/abapdocu_70/en/ABENSAP_LOCK.htm

When you set an SAP lock using the ENQUEUE function module, the value transferred to the _SCOPE entry parameter determines the lock duration. Depending on the formal parameter _SCOPE, you can release an SAP lock as follows:

If _SCOPE is set to 1, the lock is not linked to the current SAP LUW. You can release the lock either by calling the DEQUEUE function module whose formal parameter _SCOPE can have any value, or by terminating the program.

If _SCOPE is set to 2, the lock is linked to the current SAP LUW. In case CALL FUNCTION ... FOR UPDATE TASK has registered at least one update function module, the statement COMMIT WORK or ROLLBACK WORK releases the lock upon completion of the SAP LUW. When using COMMIT WORK, the update function releases the lock after processing the update function modules. This type of lock may persist beyond the end of a program until the update procedure has been completed.

If _SCOPE is set to 3, both the update function and the program must release the lock. The update function releases the lock as if _SCOPE had a value of 2. The program releases the lock as if _SCOPE had a value of 1. The entire release procedure is specified by the last user who released the lock.

If you want to release an SAP lock using the DEQUEUE function module independent of the update function, you must transfer a value to the formal parameter _SCOPE that is greater than or equal to the value transferred to the parameter of the same name for the ENQUEUE function module.

Besides the _SCOPE parameter, the entry parameters of a DEQUEUE function module correspond to those of the ENQUEUE function module. You can then use the additional parameter _SYNCHRON to specify whether the release of the lock should be delayed until the program processing continues.

Re: ENQUEUE_EVVBAKE is not working

max_anjos — Wed, 15 Jul 2015 20:53:52 GMT

Hi!

Did you Try this?

CALL FUNCTION 'ENQUEUE_EVVBAKE'

EXPORTING

MODE_VBAK = 'X'

VBELN = PF_VBELN

EXCEPTIONS

FOREIGN_LOCK = 2

SYSTEM_FAILURE = 3.