Base unit indicator error

[JTubby]

Hi - I've been trying to set up a couple shipper display items and run into the following error when setting up the hierarchy:  

Base Unit Indicator (isBaseUnit) should only be true for the lowest level Item in the hierarchy. If ChildTradeItem/gtin is not empty then Base Unit Indicator (isBaseUnit) must be equal to false.

I have based my items setup on a prior shipper display item setup which appears to be fine, and I'm just not seeing where the issue lies.  One of the problem GTINs is 00737539196026, which should contain 6 cases of 00737539196002 .  The one that is working is 00737539193704.  

Thanks for your help!

[CommunityJedi22]

Hello JTUBBY and thank you for reaching out via the customer community.  I am taking a look at this for you and will get back to you...

[CommunityJedi22]

Hello.  Great username by the way.  I took a look and believe you are encountering the issue because your proposed parent GTIN 00737539196026 has a Qty Next Level Items value of 6 but it is not linked to anything below it.  Can you link it to your other GTINs and validate?