To supply a procedure step with data from the input stream, code a DD * or DD DATA statement in the calling step after the last overriding and added DD statement. The name field of this statement must contain the name of the procedure step, followed by a period, followed by a ddname. The ddname can be of your choosing or predefined in the procedure. If it is predefined, it appears in a DDNAME parameter on a procedure DD statement. For example:

   //PROCSTP1.ANYNAME DD *
   //PROCSTP2.PREDEFN DD DATA