# Fishbowl: "QuickBooks can only handle 5 levels of Classes"

> QuickBooks rejects class hierarchies deeper than 5 nesting levels during sync.

## What it means
QuickBooks has a hard limit on how deeply classes can nest. You have a class structure in Fishbowl where a class has a child, which has a child, and so on—more than 5 levels deep. When Fishbowl tried to sync this to QuickBooks, QB rejected it because of the depth limit.

## What to check
- Review your Fishbowl class structure and count the nesting levels (Parent → Child → Grandchild, etc.). If any branch exceeds 5, consolidate by moving some classes to sibling level or merging them.
- Confirm which account type or class group triggered the error—only those deeper than 5 need flattening.
- This limit applies to QuickBooks only; Fishbowl itself has no such restriction.

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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*