The Hold Code field in the AP Unapproved Invoice Review form
Entry in this field is not required. However, if entry is made, it must be valid.
Specify or change the hold code (from HQ Hold Codes) for this unapproved invoice, if applicable. Hold codes prevent the invoice from being paid until the hold code is released. The hold code entered here is in addition to any hold code automatically placed on the transaction (or any portion of the transaction) because of retainage or a vendor hold.