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Specifies the number of dynamic PSBs required by concurrent ZDT/IMS BMP users.

The number must be in the range 1 to 999.

This parameter is optional. If it is not specified on the HFM1POPI macro statement, ZDT/IMS uses either the value specified on the HFM1POPD macro statement (if specified on that statement), or 50 (otherwise).

The user cannot override the value you specify for this parameter.

Note: If you want to run functions that use dynamic PSBs in BMP mode, you need to specify APPLCTN macro statements for each dynamic PSB name that ZDT/IMS is to use. (See Customizing IMS to support the use of dynamic PSBs in BMP mode.)