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High Spares

The substitution part (sometimes called High Spares) provides the mapping of items that can be replaced by another item. Ascendo uses this information to optimize the spares requirement to see if another part can be used to support the customer demand if there is no inventory available for a given part.

Ascendo supports advanced options for the users to create the substitution order where Ascendo will look through the order to fulfill the expected spares demand. For example, a given part (part 1) has three sub parts (part 2, part 3, and part 4).

Classic part

Substitution part

Substitution order

Part 1

Part 2

1

Part 1

Part 3

2

Part 1

Part 4

3

Here’s how the substitution logic works:

...

Spares demand quantity is 3 for Part 1 in all the below scenarios.

Scenario 1:

Part

Reorder Point (ROP)

Inventory

Final decision

Part 1 (Original customer part)

1

1

Not enough-look next

Part 2

1

0

Not enough-look next

Part 3

1

5

Demand met- use part 3

Part 4

1

2

No need to look here

Scenario 2:

Part

Reorder Point (ROP)

Inventory

Final decision

Part 1 (Original customer part)

1

0

Not enough-look next

Part 2

0

4

Demand met. Irrespective of ROP, use inventory if present.
FINAL DECISION- use part 2 to meet demand.

Part 3

1

0

No need to look here

Part 4

3

2

No need to look here

Scenario 3:

Part

Reorder Point (ROP)

Inventory

Final decision

Part 1 (Original customer part)

2

1

Not enough-look next

Part 2

1

0

Not enough-look next

Part 3

1

0

Not enough-look next

Part 4

1

2

Not enough
FINAL DECISION- since there is no enough inventory, we now look at ROP in order. Will plan for part 1 – the customer part itself. Results in shortage for part 1.

Scenario 4:

Part

Reorder Point (ROP)

Inventory

Final decision

Part 1 (Original customer part)

0

1

Not enough-look next

Part 2

0

2

Not enough-look next

Part 3

0

0

Not enough-look next

Part 4

0

2

Not enough

FINAL DECISION- since there is no enough inventory and no ROP, will plan for part 4. Results in planning shortage for part 4.