A routing operation has an invalid sequence or work center
Check sequence numbers within each routing and confirm that the selected group is a manufacturing work center.
Choose the message that matches your import.
A sequence repeats within one routing
Message looks like
This sequence number is already in use on another step
What it means
Two operations in the same routing use the same sequence number. In a multiple-file import a wrong link can pull another routing's numbers in.
Import context: Manufacturing routings.
Check this first
Compare sequence numbers within each routing and check the identifiers linking operations to routings.
Show the steps
Steps for this error
- Compare the Operation Sequence values within each routing: a sequence number can appear only once per routing.
- For a multiple-file import, check the identifiers linking operations to routings; a wrong link can pull another routing’s sequences into this one.
- Correct the sequence or the link and retry one routing.
If that looks right
A sequence can be reused in a different routing. Check for repetition within the same routing, not across the whole file.
Documentation checked September 16, 2026.
The group is not a manufacturing work center
Message looks like
Invalid manufacturingworkcenter reference key Value
What it means
The value mapped to Manufacturing Work Center is not a group NetSuite recognizes as one; the group record may be missing its work center flag.
Import context: Manufacturing routings.
Check this first
Open the employee group and confirm the Manufacturing Work Center box is checked.
Show the steps
Steps for this error
- Check the value mapped to Manufacturing Work Center.
- When the name is a correct employee group, open the group record and confirm the Manufacturing Work Center box is checked.
- Retry one operation.
If that looks right
Documentation checked September 16, 2026.
Related errors
- An item on a received line cannot be changed
- NetSuite cannot match a transaction or location line
- The import has no linked item, expense, or member lines
- Vendor bill files or purchase order mappings conflict
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