Navigate to Data⇒Organisation⇒Supplier

Locate the supplier you wish to amend, using the Search function if required. Double click or click the edit icon to open the supplier record

Under the finance details list you will see On Stop Yes or No. If Yes is selected here, the system will require authorisation before allowing any purchase orders for this supplier to be created

Select Yes to record that your company is on stop with this supplier or No to remove the stop, then click the Save button.