SAP MCS_UNIT_ENQUEUE_DEQUEUE Function Module for NOTRANSL: LIS Ereignis sperren/entsperren

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MCS_UNIT_ENQUEUE_DEQUEUE is a standard mcs unit enqueue dequeue SAP function module available within SAP R/3 or S/4 Hana systems, depending on your version and release level. It is used for NOTRANSL: LIS Ereignis sperren/entsperren processing and below is the pattern details for this FM, showing its interface including any import and export parameters, exceptions etc. there is also a full "cut and paste" ABAP pattern code example, along with implementation ABAP coding, documentation and contribution comments specific to this or related objects.

See here to view full function module documentation and code listing for mcs unit enqueue dequeue FM, simply by entering the name MCS_UNIT_ENQUEUE_DEQUEUE into the relevant SAP transaction such as SE37 or SE38.

Function Group: MCSE
Program Name: SAPLMCSE
Main Program: SAPLMCSE
Appliation area: M
Release date: N/A
Mode(Normal, Remote etc): Normal Function Module
Update:

Function MCS_UNIT_ENQUEUE_DEQUEUE pattern details

In-order to call this FM within your sap programs, simply using the below ABAP pattern details to trigger the function call...or see the full ABAP code listing at the end of this article. You can simply cut and paste this code into your ABAP progrom as it is, including variable declarations.

CALL FUNCTION 'MCS_UNIT_ENQUEUE_DEQUEUE'"NOTRANSL: LIS Ereignis sperren/entsperren
  EXPORTING
*  I_SFEIN =  "Unit (always fill from .._all)
*  I_FLG_ENQUEUE = ' ' "Indicates it should be unlocked directly!
*  I_FLG_DEQUEUE = ' ' "Indicates it should be unlocked directly!
*  I_FLG_DEQUEUE_ALL = ' ' "Indicates release all locked objects

 IMPORTING
   E_USERNAME =  "User already locking this event
   E_FLG_OK =  "Returncode (1 = locked by other user)

EXCEPTIONS
   INTERNAL_ERROR = 1    NO_INPUT_PARAMETERS = 2    NO_UNIT = 3 

.

IMPORTING Parameters details for MCS_UNIT_ENQUEUE_DEQUEUE

I_SFEIN - Unit (always fill from .._all)

Data type: TMC6-SFEIN
Optional: Yes
Call by Reference: No ( called with pass by value option)

I_FLG_ENQUEUE - Indicates it should be unlocked directly!

Data type: XFLAG
Default: SPACE
Optional: Yes
Call by Reference: No ( called with pass by value option)

I_FLG_DEQUEUE - Indicates it should be unlocked directly!

Data type: XFLAG
Default: SPACE
Optional: Yes
Call by Reference: No ( called with pass by value option)

I_FLG_DEQUEUE_ALL - Indicates release all locked objects

Data type: XFLAG
Default: SPACE
Optional: Yes
Call by Reference: No ( called with pass by value option)

EXPORTING Parameters details for MCS_UNIT_ENQUEUE_DEQUEUE

E_USERNAME - User already locking this event

Data type: SY-UNAME
Optional: No
Call by Reference: No ( called with pass by value option)

E_FLG_OK - Returncode (1 = locked by other user)

Data type: SY-SUBRC
Optional: No
Call by Reference: No ( called with pass by value option)

EXCEPTIONS details

INTERNAL_ERROR - Problems occurred during locking/unlocking

Data type:
Optional: No
Call by Reference: No ( called with pass by value option)

NO_INPUT_PARAMETERS - Do not transfer enqueue or dequeue flag

Data type:
Optional: No
Call by Reference: No ( called with pass by value option)

NO_UNIT - Do not transfer unit

Data type:
Optional: No
Call by Reference: No ( called with pass by value option)

Copy and paste ABAP code example for MCS_UNIT_ENQUEUE_DEQUEUE Function Module

The ABAP code below is a full code listing to execute function module POPUP_TO_CONFIRM including all data declarations. The code uses the original data declarations rather than the latest in-line data DECLARATION SYNTAX but I have included an ABAP code snippet at the end to show how declarations would look using the newer method of declaring data variables on the fly. This will allow you to compare and fully understand the new inline method. Please note some of the newer syntax such as the @DATA is not available until a later 4.70 service pack (SP8), which i why i have stuck to the origianl for this example.

ABAP code using 7.40 inline data declarations to call FM MCS_UNIT_ENQUEUE_DEQUEUE

The below ABAP code uses the newer in-line data declarations. This allows you to see the coding differences/benefits of the later inline syntax. Please note some of the newer syntax below, such as the @DATA is not available until 4.70 EHP 8.

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