not a lot to go on here, but guessing that the you have a Sub Account specified in your object definition for SOLine and that Sub Account reference has an issue.

I would really need to see how you are setting things and what values you are sending through.

Hi @AFILIPOVA 

Can you share the screenshots of the settings of the Order Type you created? I think if we see that, we could help you more. 

Hi @AFILIPOVA

Please review below article 

https://community.acumatica.com/crm%2D175/an%2Derror%2Doccurred%2Dduring%2Dprocessing%2Dof%2Dthe%2Dfield%2Dinventoryid%2Dfor%2Dartran%2D15849

Hello,

Kandy is correct - Sales Order “Combine Subaccount from” settings can be found in Order Types screen.  Press F3 on the subaccount wildcard field ( fn+f3  if using a Mac) to see the list of choices.

Then go to the source of your Combine Subaccount From entity and see how it is set.

For example, IIII-IIII means ‘get the subaccount from the item’. In this case, look at the GL Accounts tab of the Stock or Non-Stock Item that you are using for testing. Is the Sales Sub populated correctly?

Laura

Thank you . No “subaccount”. I did try to use “Customization” to add a field to the Invoice FORMin Test and the problem occured in Production. I am guessing both are related. Not sure how to revert back to original.

Hi @AFILIPOVA  were you able to find a solution? Thank you!