QuickBooks

Authorize Run a Call to read and write to QBO.

Pick which entities sync, in which direction, and when.

Safely unlink without losing data on either side.

What fields map, what doesn't, and how to read a sync error.

Receive-payment records against the matching invoice, and the ordering rules.

Name matching, migrated-customer safety, and why duplicates never reach your books.

How to keep both catalogs in step.

Sales tax rates and how they end up on a QBO invoice.

Tag synced invoice lines with a class per job type so P&L by Class shows each division.

POs post as Bills against your COGS account.

Every held-back record explains itself — here's what each message means and the fix.

Add your employees in QuickBooks with hourly pay so synced hours turn into paychecks.

Approved, locked hours push as time entries QuickBooks Payroll turns into paychecks.

Each tech's hours carry a class, so wages and payroll taxes land under the right division on P&L by Class.

Each day splits across the classes of the jobs a tech worked, so every division's P&L carries its true labor cost.