Specifying the exits

To start the WLM application, you use a TSO/E REXX exec IWMARIN0. IWMARIN0 concatenates the IPCS/WLM data sets, allocates some data sets required for a service definition, and invokes the application panels. If EXITS is specified on the EXEC statement, IWMARIN0 uses the exits in the specified data set.

Table 1 shows the return codes from IWMARIN0.

Table 1. Return codes from IWMARIN0
Return Code	Explanation
4	Not in ISPF. Application cannot be started.
8	Unexpected keyword (parameter) on WLM application invocation. Unexpected keyword(parameter) is: keyword. keyword represents the keyword (parameter) from the command invocation.
12	Unexpected error occurred when calling installation exit IWMAREX1. One of the following: Installation exit IWMAREX1 must exist in data-set name for the WLM application to run. data-set name represents the data set that must contain the installation exit. Check to make sure the data set contains IWMAREX1. Installation exit IWMAREX1 must exist in the current concatenation order for the WLM application to run.
16	Unexpected keyword (parameter) from WLM exit IWMAREX1. Please check coding in WLM installation exit IWMAREX1 for incorrect keyword (parameter): `parameter`. `parameter` represents the keyword (parameter) that is incorrect.
20	Unexpected RC="rc" from TSO ALTLIB\|ISPF LIBDEF for `data-set-name` The WLM application cannot be started due to ALTLIB or LIBDEF failures for `data-set-name`. See specific REXX messages for the names of the data sets which failed.
24	ALTLIB failed during attempt to find installation exit data set. WLM application can not be started. TSO ALTLIB RC=xx. xx represents return code from TSO ALTLIB service.