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Specifies whether or not the user can override the value specified for the IMSBKO parameter.
The user can override the IMSBKO parameter.
The user cannot override the IMSBKO parameter.
If you specify UIMSBKO=N:
  • The Dynamic backout option field on the DLI Mode Parameters panel is protected.
  • IMSBKO= statements in the HFMIMSIN input of Load and Batch Edit jobs are ignored.
  • No IMSBKO= statements are included in the JCL generated by the Load and Batch Edit dialogs.

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 Y (otherwise).