Hello! I have made a codeunit that lets me insert a line into the Output Journal using the Item Journal Line record.
I have managed to insert the values I want and validate them successfully, inserting one line into the table.
However, I am struggling to insert more than one line without deleting the first one. The reason for this is that I get this error:
/The record in table Item Journal Line already exists. Identification fields and values: Journal Template Name='AVGANG',Journal Batch Name='STANDARD',Line No.='0' CorrelationId: fcde2248-cbd5-41b3-9655-e10a926ebed8./
I understand that the Line No. needs to change, but I am fairly new to AL, and don't quite understand how I can get the next available Line No.
AI keeps suggesting that I use the function NextLineNo(), but this function is not defined in my record /Item Journal Line/.
How can I get the next available Line No every time I insert a line?
