Value cannot be null. Parameter name: key how do I resolve this?

@Manikanta Dhulipudi very new to import scenarios so this was my best first attempt at this particular one. The last two lines of the first image and the first two lines of the second image are the same lines.

Hello,

It looks like the Source Fields are missing. Have you connected your Data Provider (Top of screen is hidden)?

The Data provider contains the values that you need to select in the Source/Value column.

Laura

So I got it to work! But noticed that I’m not sure how my item class field needs to be formatted in my excel sheet.

In my excel sheet I had the item class formatted

OGS-AMENDME-BIOCHAR

Acumatica imported it as

OGS-AME-NDME-BI-OCHAR__-

So do I need to make sure anything not 7 characters has enough spaces to make it 7?

Class:  OGS

SubClass1: AMENDME

SubClass2: BIOCHAR