How to assign the priority when using rspc_api_chain_start?

I want to call the function RSPC_API_CHAIN_START via RFC.
How can I set the priority (A, B or C) for the job?

If I test the function via SE37 the popup appears, and I do not know how to set the necessary parameters.

Thank you un advance for your help & regards

在使用FM RSPI_API_CHAIN_START触发Process Chain时，总是会弹出assign priority对话框，如果后台运行触发处理链

程序，则不会出现 。

所以在FM RSPC_API_CHAIN_START中加入：

sy-batch = 'X'.

即可解决此问题。

FUNCTION Z_RSPC_API_CHAIN_START.
*"----------------------------------------------------------------------
*"*"Local Interface:
*" IMPORTING
*" VALUE(I_CHAIN) TYPE RSPC_CHAIN
*" VALUE(I_T_VARIABLES) TYPE RSPC_T_VARIABLES OPTIONAL
*" VALUE(I_SYNCHRONOUS) TYPE RSPC_SYNCHRONOUS OPTIONAL
*" VALUE(I_SIMULATE) TYPE RSPC_SIMULATION OPTIONAL
*" VALUE(I_NOPLAN) TYPE RS_BOOL OPTIONAL
*" VALUE(I_DONT_WAIT) TYPE RS_BOOL OPTIONAL
*" VALUE(I_POLL) TYPE RS_BOOL OPTIONAL
*" EXPORTING
*" VALUE(E_LOGID) TYPE RSPC_LOGID
*" EXCEPTIONS
*" FAILED
*"----------------------------------------------------------------------

*设置为批处理执行模式
sy-batch = 'X'.

*调用函数执行处理链
CALL FUNCTION 'RSPC_CHAIN_START'
EXPORTING
i_chain = i_chain
i_t_variables = i_t_variables
i_synchronous = i_synchronous
i_simulate = i_simulate
i_noplan = i_noplan
i_dont_wait = i_dont_wait
i_poll = i_poll
IMPORTING
e_logid = e_logid
EXCEPTIONS
error_message = 1.
IF sy-subrc <> 0.
MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4
RAISING failed.
ENDIF.
ENDFUNCTION.

网上提到用参数I_DONT_WAIT可解决此问题，但我未测试成功。具体网址如下：

https://forums.sdn.sap.com/message.jspa?messageID=7101769

I solved my problem by myself!

I've installed OSS Note 1253902 - Correction: Start of HybridProvider chain in DIA process.
It corrects FM RSPC_CHAIN_START and RSPC_API_CHAIN_START, adding a parameter to these FMs
I_DONT_WAIT TYPE RS_BOOL OPTIONAL that permits to solve my problem.

SET THE INTERFACE I_NOPLAN TO ‘X’ ALSO CAN SOLVE THE PROBLEM.

IT CALLED THE FM 'RSPC_JOB_PRIORITY'.

SPAN {
font-family: "新宋体";
font-size: 10pt;
color: #000000;
background: #FFFFFF;
}
.L0S31 {
font-style: italic;
color: #808080;
}
.L0S32 {
color: #3399FF;
}
.L0S33 {
color: #4DA619;
}
.L0S52 {
color: #0000FF;
}
.L0S55 {
color: #800080;
}

FUNCTION rspc_job_priority.
*"----------------------------------------------------------------------
*"*"Local Interface:
*" IMPORTING
*" REFERENCE(I_BATCHCLASS_IN) TYPE CHAR1
*" REFERENCE(I_EDITEABLE) TYPE RS_BOOL DEFAULT RS_C_TRUE
*" EXPORTING
*" REFERENCE(E_BATCH_CLASS) TYPE CHAR1
*" EXCEPTIONS
*" ABORTED_BY_USER
*"----------------------------------------------------------------------
DATA: l_ignore_frontend TYPE rs_bool.

l_ignore_frontend = g_ignore_frontend.
IF i_editeable = rs_c_true.
g_ignore_frontend = rs_c_true.
ENDIF.

g_job_class = i_batchclass_in.
IF g_job_class IS INITIAL.
g_job_class = 'C'.
ENDIF.
* ---- Make a call to the Screen----
DO.
CALL SCREEN 1400 STARTING AT 3 3.
e_batch_class = g_job_class.
IF ok_code = 'EXIT'.
MESSAGE e213(rsm) RAISING aborted_by_user.
ENDIF.
IF NOT e_batch_class IS INITIAL.
EXIT.
ENDIF.
ENDDO.
g_ignore_frontend = l_ignore_frontend.

ENDFUNCTION.