Enabling Your Subsystem for New Functions

You can use the enable function of the IEFJSVEC service to:

Dynamically add one or more function codes to an existing function routine. This function routine might have been specified on the original build SSVT request or might have been added by a previous enable request.
When preparing to enable additional function codes, consider:
- When you will invoke IEFJSVEC.
  If you are invoking IEFJSVEC while running under a command processor, for example, from a subsystem routine invoked during START command processing, provide a console ID and CART, as described in Input Parameters.
- Which existing function routines will support which additional function codes.
Dynamically add one or more new function routines, and, for each function routine, one or more function codes that the function routine is to support.
When preparing to enable additional function routines and function codes, consider the following:
- When you will be invoking IEFJSVEC.
  If you are invoking IEFJSVEC while running under a command processor, for example, from a subsystem routine invoked during START command processing, then provide a console ID and CART, as described in Input Parameters.
- What are the actual number of function routines your subsystem currently supports and is it less the maximum number allowed.
  To dynamically add more function routines to your subsystem, the actual number of function routines your subsystem currently supports must be less than the maximum number of function routines that was specified when your subsystem's SSVT was built. See the description for the JSBMAXFR field in Building the SSVT.
- What is the name of each additional function routine and the function codes it is to support.
- Where your subsystem function routines are to reside. See Setting Up Your Subsystem for more information on where your function routines can reside.