SAP Knowledge Base Article - Public

2398329 - System hangs or Crashes When Trying To Open/view Details under Output History tab or while ordering or error while approving the PO 'Attachments to be sent via Email Channel has size greater than 20 MB""


System hangs or crashes when you try to view the Output History of a document like purchase order.


 While approver tries to approve you get error

"Attachments to be sent via Email Channel has size greater than 20 MB"


 When you order the Purchase order


SAP Business ByDesign

Reproducing the Issue

  1. Go to Purchase Requests and Orders Work Center.
  2. Go to the Purchase Orders View.
  3. Search for Purchase Order XYZ (XYZ refers to the purchase order ID) and click on View All button.
  4. Navigate to Output History Tab.


You may face a system crash/ no output history visible and system hangs, as the total size of the attachments (both at header and item level together) is greater than 20 MB that is sent to Supplier.

You may have higher size of attachments in purchase order, but the size of attachments sent to Supplier is only 20 MB considering all outputs (created output and changed out puts) sent to Supplier.

Only those attachments with type Standard are by default considered to be sent to supplier and not others.


If the approver is unable to approve due to error then ask him to click on Send for revision.

 Later ask creator of the Purchase order to follow below steps before ordering any purchase orders or changing existing purchase orders and clicking on Send update button in future.

  1. Go to the Purchase Request and Orders Work Center.
  2. Go to the Purchase Orders View.
  3. Search for Purchase Order XYZ (XYZ refers to the purchase order ID) and Select on View All button.
  4. In the top right corner, Select You Can Also Button.
  5. Select Edit Output Settings for Change PO option.
  6. Navigate to Attachments Tab and uncheck the unnecessary attachments or which are crossing the  20 MB limit.
  7. Where 20 Mb should be total  size of  all attachments used in all outputs created and sent to supplier successfully that are appearing under output history tab.
  8. Also Go to item level attachment tab  of each item as well as header level attachment tab and either delete the unnecessary attachments or delete and then re upload the attachments with type Internal.
  9. Then click on send update

This is applicable to other Business Documents like Sales Order.


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SAP Business ByDesign all versions