WMS: Replenishment tasks not getting created. What are splitting and Zone level constraints and where are they configured in SMCFS 8.0? 

Answer

What are Splitting constraints?

Pick Location Assignment (PLA) split constraints are available under WMS tree -> Pick Planning -> Pick Location Assignment Rule.
Check for following options in "Splitting is allowed for"

   
• Pallets and Cases
   
• Pallets but not Cases
   
• Neither Pallets nor Cases.

If the radio button "Neither Pallets nor cases" is selected, replenishment will not be generated if the inventory is stored in license plates (i.e. Pallets and Cases)

What are zone level constraints?

Zone level constraints are configured under WMS tree -> WarehouseLayout -> Zone details.
Under specific zone details check for the drop down "Choose the unit of measure utilized for the storage of products".
If this drop down is populated with Case/Pallet value, then replenishment will not be generated.

Excerpt from Section 4.7.4 Creating a Replenishment Strategy in WMS_Configuration_Guide.pdf:

Note: If you configure the replenishment strategies for the zones that have split constraints defined at the PLA rule level or zone level, the Sterling Warehouse Management System does not perform demand-based replenishment. The existing pend-in quantities are also not considered for allocation. This is to avoid violating a split constraint as the exact information about the incoming inventory is not available. Such zones can be replenished using the location monitoring rules.