Problem
When creating a PO and trying to attach a job to that PO, you may encounter the error message MaterialSku is not specified in business unit.
Solution
In Pricebook, create a Time and Material task and select the Time and Materials Service option.
When finished, click Save.
On the navigation bar, go to Settings > Operations > Business Units.
Locate the business unit and click Edit.
On the Material SKU field, assign the material SKU to the business unit.
When finished, click Save.
If you do not have the Time and Materials feature enabled, add the purchase order to the job without making it a Time and material service.