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Scanning batches and serial numbers: GS1 code, IMEI and stock check in weclapp

One scan on the box selects item and batch, and the best-before date in the code is checked against stock.

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Anyone shipping batch-controlled products knows the problem: the right batch is on the shelf, but at the packing table it is chosen from a list, and a typo ends up in the traceability. Fulfillment 4 weclapp reads GS1-128 and GS1 DataMatrix codes with GTIN, batch and best-before date in one scan, checks stock in weclapp and books the quantity to exactly this batch. You scan serial numbers and IMEI either against weclapp stock (items with a serial number requirement) or, if you prefer to keep them in the delivery line, via the comment scan with IMEI check and duplicate protection. Here you'll find how this works and which stock situations the app rejects.

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How it works

  1. Scan the GS1 code: The code on the box contains GTIN (01), batch (10) and optionally the best-before date (17). The app finds the line via the GTIN, selects the batch and books the accepted quantity to it. It skips further identifiers in the code; if the best-before date differs from stock, it warns.
  2. Or scan the batch number: If only the batch number is on the product as a barcode, that is enough too. The app assigns it to the matching batch-controlled line.
  3. Scan serial numbers: For items with a serial number requirement, you scan the exact serial number from weclapp stock. Duplicate scans are detected, and the quantity is checked against the delivery.
  4. Or scan serial numbers and IMEI into the comment: With the comment scan, the scanned numbers land in the line comment of the delivery. IMEIs are checked for check digit, duplicates and count. Which items this applies to is controlled by the additional fields "Scan serial numbers" and "Scan IMEI".
  5. Have stock checked: The app queries stock in weclapp and says clearly why a scan is not possible: batch not in the delivery, not in stock, reserved for other orders or already fully assigned.
  6. Ship: As with the item scan: all lines confirmed, label printed, delivery shipped in weclapp. Batch and serial number appear as a withdrawal in the weclapp delivery, and with the comment scan in the line comment.

Who it's suited for

  • Manufacturers and merchants of dietary supplements, ingredients and cosmetics with batch requirements and best-before dates, and shippers of products with GS1 coding.
  • Shippers of electronics and devices with a serial number or IMEI requirement, also in B2B with freight forwarding.
  • Businesses that want to record the delivered batch and serial number per delivery in weclapp.

Limits, honestly

  • The item must be batch- or serial-number-controlled in weclapp, or flagged for the comment scan via an additional field. Without this flag, it stays with the normal EAN scan.
  • We enable the GS1 batch scan for you; it is not a setting you configure yourself in the app. For DataMatrix codes, you need a 2D scanner.
  • If a batch is physically there but reserved for other orders, the app rejects the scan and says so. You resolve the reservation in weclapp.
  • A deviating best-before date in the code is a warning, not a block. If you want a hard block, you'll need to agree this with us.
  • As soon as an item has been started via batch scan, manual batch selection is locked for that item until you reset the progress. This prevents mixed assignments.

FAQ

Frequently asked questions

Does the GS1 code have to come from a specific scanner?

No. Any 2D scanner in keyboard mode works; the app normalizes the usual variants of the separator that scanners send for GS1 codes.

What about batches that are only printed in plain text?

Then you scan the EAN and choose the batch manually from weclapp stock. The advantage of the deterministic scan is lost; traceability in weclapp remains.

Can I combine batch and box scan?

Yes. The batch is assigned to the parcel that is currently open. More at Multi-parcel shipping.

Batches at the packing table without typos?

We check your items for batch and serial number requirements, enable the GS1 scan and test with real boxes.

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