# Fishbowl: "Cannot use serial numbers on non-serialized part"

> You're trying to add serial numbers to a part that isn't configured to use them.

## What it means
You attempted to enter or assign serial numbers for a part, but that part is configured as non-serialized in its inventory master data. Fishbowl only allows serial numbers on parts designated to use them.

## What to check
- Verify the part is actually serialized. Check its part master record to confirm the serialization setting.
- If the part should be serialized, it may need to be reconfigured (typically this requires changing the part master, not just the current transaction).
- If the part should remain non-serialized, remove the serial numbers from this transaction and track by quantity instead.

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*From Israel Lopez Consulting (ILC). Custom Fishbowl Inventory integrations and software, and Fishbowl experts since 2015. Written by Israel Lopez. Questions about this topic, or want to reach the people who wrote it? Visit https://israellopezconsulting.com/contact*