SAP Knowledge Base Article - Public

3085963 - Invalid Substring Access Issue when saving the Purchase Order


Prerequisite: Output Parameter Determination is maintained correctly.

Scenario 1: If the Purchase Order already has an output triggered with status completed and then in the same Purchase order, change has been made to a print relevant field along with that a manual output is also triggered so on the save of the Purchase Order the issue occurs.

Scenario 2: After the save of a new Purchase Order, if an automatic output doesn’t get triggered then adding manual output, on save of the Purchase Order the issue occurs.


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Solution for Scenario 1:

There are two possible solutions for scenario 1:

  1. Uncheck the print relevant flag for field in print relevant SSCUI.
  2. Create a manual output for the affected Purchase Order and save it, then edit the same Purchase Order with the print relevant change and save.


Solution for Scenario 2:

  1. Do a small change in Purchase Order which will not affect the details sent out to supplier (E.g. Header Text) and save the Purchase Order it will generate the automatic output.


Purchase Order; Output; , KBA , MM-FIO-PUR-PO-OM , Purchase Order Output Management , Problem


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