Hey @Bekind24
Do you ticked up write and read inventory permission for your custom app?
Topic summary
Goal: Automatically set variant inventory to 0 when stock drops to 10 to prevent overselling during product drops, and limit the change to specific products.
Key steps and fixes:
- Root cause of failures: missing write_inventory permission on the custom app. Store owner approval required. After enabling, the Flow ran successfully.
- Targeting specific items: add Flow conditions filtering by product/variant ID, handle, or product tag. Use dynamic variables (e.g., {{productVariant.id}}). OP implemented conditions for 9 variants; solution validated.
Alternatives and improvements:
- Safety stock: Configure a reserved threshold (e.g., 10) so checkout is blocked below that level, mitigating overselling without setting inventory to zero. Link provided.
- Simpler API calls: Use Flow’s “Send Admin API request” action (handles scopes/API key). For quantity changes, call the Admin GraphQL mutation inventoryAdjustQuantities.
- Loop prevention: If triggering on inventory updates and then updating inventory, compare before/after quantities to avoid infinite loops.
Additional notes:
- Screenshots of Flow setup and permissions were shared but are not essential to follow the solution.
Status: OP’s Flow now works for selected variants. Further optimization may include adopting Safety Stock or the new Admin API action. Discussion remains open for refinements.