Updating BOM Revisions on Open Work Orders in Cetec ERP

Customer requirements change, even after your team has already picked material and started work on a job. If a customer asks you to move a subassembly from one revision to another after picking, scrapping the work order and starting over wastes time, material, and schedule.

Cetec ERP lets you change the BOM revision on an open subassembly work order, automatically unpicking and re-picking material to the new revision. This keeps your BOM record aligned with the customer request without losing the work already done on the job.

The Problem: Revision Changes After Picking

In the legacy example, a customer requested an updated revision for one of the subassemblies on an order. The production team already had material picked against that subassembly at Rev X. Without a controlled way to move to Rev Y, they would have to cancel or reissue the order, manually dekit material, and rebuild the work order to match the new revision.

For a contract manufacturer, this kind of rework slows production, introduces risk to inventory accuracy, and can create confusion about which revision actually shipped to the customer. A tool that can realign the work order to the new revision, and keep material usage accurate, is critical for both engineering control and shop floor execution.

Change the Revision on an Open Subassembly Work Order

From the subassembly work order in Cetec ERP, users can update the BOM revision directly on the open order. On the left navigation of the work order, open the Maint/Etc+ menu and select the Change Rev option. This starts the controlled revision change process on that subassembly.

The Change Rev button is located under Maint/Etc+ on the left-side navigation of the work order. Using this function keeps the revision change inside the work order itself instead of pushing that work onto engineering or production to re-create the job manually.

Select the New Revision for the Order

After you select Change Rev, Cetec ERP presents a list of available revisions for that subassembly. You choose the revision the customer now requires, for example changing from Rev X to Rev Y. This ties the work order to the correct engineering definition while leaving the order number and broader schedule in place.

Because the revision list is tied to the item definition, you are selecting from valid revisions that engineering has already defined. This reduces the chance of a typo or a mismatch between what the customer expects and what the shop floor builds.

Automatically Unpick and Re-pick Material to the New Revision

When you confirm the revision change, Cetec ERP warns you that all material picked for the current subassembly revision will be unpicked, then re-picked for a new suborder created at the new revision. This prompt is important, because it makes clear that inventory allocations will move from Rev X to Rev Y as part of the change.

The result is a new subassembly order at the updated revision, with required material automatically re-picked. Your team does not have to manually dekit parts, adjust allocations, or rebuild the work order structure. Production can continue using the new revision with inventory and documentation aligned to the change.

Key Takeaways

• You can change a BOM revision on an open subassembly work order in Cetec ERP without cancelling or recreating the job.
• The Change Rev action moves the work order from the old revision to the new one while keeping the order and schedule in place.
• Cetec ERP automatically unpicks material from the old revision and re-picks it to a new suborder at the new revision.
• Controlled prompts make it clear that inventory allocations will change, which protects inventory accuracy and traceability.
• Using this workflow helps your team respond to revision changes from customers without causing major disruption on the shop floor.

Conclusion

Revision changes after material has been picked are a normal part of working with demanding customers. By using the Change Rev function on open subassembly work orders, your team can move to the correct revision, keep inventory and documentation accurate, and continue production with minimal rework inside Cetec ERP.