Multi-Item Single Delivery Location 
This function allows the rules-based ATP check to determine a common delivery location for a requirements grouping, such as a delivery group. You can use a multi-item single delivery location (MISL) to reduce transportation costs, since the items in a requirements grouping are not shipped from multiple locations. Furthermore, you can deliver products from an MISL more quickly that from a consolidation location, since products do not first have to be transported to a common delivery location from the various locations.
This function is linked to the following rules-based ATP check:
The MISL automatically activates the following settings in the check instruction:
Activation of Rules-Based ATP Check
Direct Execution of Rules-Based ATP Check
The MISL does not take into consideration the following functions of the rules-based ATP check:
Production process model (PPM)
Location determination activity
Validity of substitutions
Characteristic substitution
Exclusive rule strategies, exclusive or alternative rules
Location product substitution procedures
Production with the exception of multilevel ATP check (MATP)
Override input location
You cannot use the MISL in combination with third-party order processing.
You made the settings for the MISL.
If you want to call the MISL from SAP Customer Relationship Management (SAP CRM), you must use SAP CRM 5.0 or higher.
You call the rules-based ATP check in SAP APO from the OLTP system using a requirements grouping, such as a delivery group.
The rules-based ATP check determines a list of substitute locations using a rule of type Multi-Item Single Delivery Location. The system first checks if all the products in the requirements grouping appear in these locations. If not all products appear at a location, the system removes this location from the substitute list.
The system then checks iteratively at which location in the list all requirements in the requirements grouping can be completely confirmed.