Inventory and sales activity
Changes in available inventory can also provide valuable information about competitor activity and product demand.
Monitoring marketplace inventory levels daily or weekly creates a historical view of inventory movements. It reveals, for example, when new inventory is added and how quickly the available stock subsequently decreases.
We can monitor:
- current inventory levels
- inventory movements by product
- when inventory is replenished
- frequency of inventory updates
- the rate at which inventory decreases
- temporary stock shortages
- products becoming available again
- inventory developments over time
Systematic monitoring can reveal patterns that remain hidden in a one-off check.
For example, if new inventory is added every Tuesday and gradually decreases throughout the week, this provides insight into a product's replenishment cycle and potential sales activity.
Depending on how a marketplace displays inventory data, inventory movements can also be used to estimate the number of products sold. Combined with other available data, this can help analyse sales volume and revenue potential.
Inventory monitoring therefore reveals not only what competitors offer, but also how actively products are sold on a marketplace and how demand and availability develop over time.