Here we would like to draw your attention to APB_ISR_CUST transaction code in SAP. As we know it is being used in the SAP BC-MUS (Musing Tools in BC) component which is coming under BC module (BASIS).APB_ISR_CUST is a transaction code used for ISR Scenario Customizing in SAP.
It comes under the package APB_ISR.
Transaction APB_ISR_CUST technical data table
| Tcode | APB_ISR_CUST |
| Purpose | ISR Scenario Customizing |
| Module | BC |
| Component | BC-MUS |
| SAP Package | APB_ISR |
| Type | P |