You can use PDA to stock out the merchant SKU to deduct stock.
Steps
Step 1: Login BigSeller in PDA and complete the PDA settings
scan the QR code or click the link to open BigSeller page on your PDA > login BigSeller
Link:
https://pda.bigseller.pro/
Complete the PDA settings first
Click the settings icon > select the common warehouse > set the scan settings
Step 2: Manual Stock Out
After confirming stock-out in PDA, There will be a record in BigSeller web page.