Hi. I did customize the data sources on WMSSHIPMENT form. I added two views into the datasource in addition to the original datasource WMSShipment & WMSShipmentExt Table:

But since then, we got this error whenever users want to update any field in the form. The error is appearing even when Shipment field is already filled as shown in below image. I checked the Shipment field mandatory property on the form, and it's set to No. I even try to catch the Shipment field value on infolog to see if the value is there, and it's there.

So I'm at lost here what would probably the other cause. Please help. Thank you.
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