Please see below for the following Prerequisites, on each of the Print options

Please let me know if this answers your question, or if you need further information.

:

Print Purchase Order Explanation

Use this function for printing out a purchase order. The document can then be sent to the supplier by mail or fax.

Note: It is not possible to print order lines that are in the Canceled status.

Prerequisites

• The purchase order must have been released, i.e., in Released status.
• The Print Purchase Order check box must be selected in the Supplier/Purchase/Misc Supplier Info tab.
• If the amounts inclusive of tax are to be printed on the report, the Print Amounts incl. Tax check box in the Supplier/Purchase/Misc Supplier Info tab must have been selected. 

System Effects

• A printout of the purchase order is processed and the Communicated check box on the purchase order header is selected. The purchase order printout can then be sent for confirmation to the supplier.

Print Purchase Order Changes Explanation:

Use this function for printing only the changes that have been done on the purchase order since the last revision was printed. Alternatively, you can choose to print the entire purchase order.

Prerequisites

• A new revision must have been created for the purchase order.
• The Print Purchase Order check box must be selected in the Supplier/Purchase/Misc Supplier Info tab.
• If amounts inclusive of tax are to be printed on the report, the Print Amounts incl. Tax check box must have been selected on the Supplier/Purchase/Misc Supplier Info tab. 

System Effects

• Except for the purchase order header information, only the changes since the last revision are printed. There is one section for lines changed since the last revision and one section for new lines added since last revision. Note: Purchase order lines in Cancelled status are printed on this printout.
• If any supplier contacts and/or internal destination exist on the purchase order, these will be printed on the report.
• The Pending Changes check box on the purchase order header is cleared

Print Purchase Order, Work Copy Explanation

This report is for internal use only and is identical to the normal print order report.

Prerequisites

• A purchase order header must have been entered and saved.
• If amounts inclusive of tax are to be printed on the report, the Print Amounts incl. Tax check box on the Supplier/Purchase/Misc Supplier Info tab must have been selected. 

System Effects

• A work copy of the purchase order report is printed.

Print Purchase Order Changes, Work Copy Explanation

This report is for internal use only and is identical to the normal print order report.

Prerequisites

• The entire purchase order must already have been printed.
• If amounts inclusive of tax are to be printed on the report, the Print Amounts incl. Tax check box must have been selected on Supplier/Purchase/Misc Supplier Info tab.

System Effects

• A work copy of the purchase order report is printed.

Hi,

When you use Order report functionality, you can select a report to specify report parameters, and how you want to distribute the report. Since this is overview level report functionality (in another word admin level utility) that loads up with all available reports layouts with specific report parameters. Here, there is no way to filter out report parameters based on status of the main reporting parameter(In your test case Purchase Order). Our recommendation is to print directly from the relevant IFS application page which is more convenient and quicker.

regards,

Piyal

Thank you @jabous  for the clear narration

@Piyal Perera  Thank you for your answer