Sales order docnum UDF query on Delivery note or AR Invoice

[former_member445201]

Hello Guys,

Can someone advice on the below requirement.

I need to displayy the AR Sales order number onto a UDF from the AR Invoice document.

I have tried the below link but it comes up with

Internal error (3006) occurred [Message 131-183]

i have tried adding the below and trigger when the sales order is added.

SELECT $[ORDR.DocNum]

This however will not work for automated sales order coming from the web portal or EDI or if the order require approval.

This field is need on the AR invoice as i have a document layout in PLD which require the sales order number from the based document of the AR Invoice.

https://answers.sap.com/questions/11652599/sales-order-docnum-udf-query.html