CUSTNAME (customer name)
Any valid 1- to 18-character MainView for IMS customer ID can be specified. MainView for IMS customer IDs are user-defined with a user exit from the Log Edit program IMFLEDIT.
CUSTNAME=id
You can specify up to a maximum of 200 MainView for IMS customer IDs per run. For example:
CUSTNAME=CST01.S1001,CST02.S1001,SALES.FORECAST
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