question

The row in the inventory table is already assigned to the tokens as a label, so you can just look up whether or not a tote is used and how many items should be placed inside it.

How do the quantity and tote_quantity values interact. Should the second row result in 50 totes with 25 items each or 2 totes with 25 items each?

In the first case, you can again just read the values from the table when creating the items. In the second case, you could batch the tokens before creating the tote and the items therein.

Current issues in your model:

- The Tote_Capacity column is formatted as string data (as indicated by the alignment to the left edge of the cell). Changing this to number data will make reading them easier since they won't have to be converted.
- You use token.slot as the destination in the Move Object activity. This field needs to reference an object, which the slot is not (it's a Storage.Slot class reference). You can get a reference to the rack the respective slot is part of via this value though (see attached model).
- When creating totes, you assign them to the label Tote on the token. However, to move the objects into the rack, you use token.item (which is correct for the case in which the items are not placed in tote. To use the same activity for both cases, the label names should match, so I assign the totes to the label item as well in the attached model. (A reference to the individual items is not necessarily needed, as you can always refer to them as subnodes of the tote).

storage-model-fm.fsm