Why Does Our Packing Line Stop Waiting for Serial Numbers?

Your packing line stops when the serial numbers it needs are not available at the moment packing happens. Depending on how your systems are set up, that delay can start in how numbers are generated, how they are held near the line, or how they move between SAP ATTP, your line systems, and SAP EWM.

Why it happens

Common causes, though the real one depends on your design:

• Numbers are requested as needed instead of being kept ready in advance
• The ready supply is sized for average speed and runs short on fast runs
• Extra systems sit between the line and the source of the numbers, and each hop adds delay
• Where packing data must be confirmed before the next step, a backlog can hold up handling units in SAP EWM
• Queues and interfaces are not watched, so a blocked message is found only at the end of the shift

Business impact

Operators stand idle and the line runs below rated speed, so OEE falls. Trucks wait when shipping is not confirmed. Late or incomplete serialized data also means rework. In regulated markets it matters more, because reporting depends on that data being complete and on time. DSCSA in the US covers electronic tracing for certain prescription drugs, and the EU FMD covers safety features on medicinal products. A delay does not by itself mean non-compliance, but it shortens the time you have to get the data right.

How to solve

1. Make numbers available before the moment packing needs them
2. Size that supply for your fastest line, not the average
3. Move events as they happen, where your design allows it, instead of scheduled runs
4. Remove hops between systems that add no real value
5. Watch queues and interfaces with alerts so a block shows up in minutes
6. Test at peak volume before your busiest season

Who can solve it

SCM Champs is a supply chain consulting firm that works on SAP ATTP and SAP EWM together, rather than treating them as separate systems. Typical engagements start with a root-cause assessment to identify where the delay sits — serial number generation, buffering near the line, integration between systems, or event processing — because each one needs a different fix. From there, the work covers correcting the design, clearing backlogs, and putting interface monitoring in place that the plant team can run without outside support.

SCM Champs works with pharmaceutical and regulated manufacturers on serialization and warehouse execution.

Outcomes

• Line runs at rated speed
• Handling units close without waiting
• Trucks leave the dock on time
• Serialized data complete and on time for reporting
• Fewer manual fixes and easier audits