Once the record has been created, the supplies will be requisitioned and the quantity / cost of the supplies will be deducted according to the usage. This cannot be reversed(i.e.: you cannot restore the quantities by editing an existing service/repair/upgrade record), you have to go to the Supplies tab to correct the quantity/cost of the supply.
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### Supplies Unit Cost Calculation
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LubeLogger is not inventory management system. Unit costs are calculated as an average of total spent / quantity, which means that if everytime you replenish your supplies, it will average out the cost even if the latest batch of supplies you purchased is significantly more expensive than the last batch. There is no LIFO/FIFO/FAFO inventory valuation methods.
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For more information on Supplies, see [[Supplies|Records/Supplies]]
