# AR Invoice Combined DMT - Object reference not set to an instance of an object

**URL:** <https://www.epiusers.help/t/ar-invoice-combined-dmt-object-reference-not-set-to-an-instance-of-an-object/107285>\
**Category:** Kinetic ERP\
**Created:** [September 21, 2023, 9:31pm UTC](https://www.epiusers.help/t/ar-invoice-combined-dmt-object-reference-not-set-to-an-instance-of-an-object/107285 "2023-09-21T21:31:02Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![twinkelman](https://www.epiusers.help/letter_avatar_proxy/v4/letter/t/bc79bd/32.png) [@twinkelman](https://www.epiusers.help/u/twinkelman)\
**Post date:** [September 21, 2023, 9:31pm UTC](https://www.epiusers.help/t/ar-invoice-combined-dmt-object-reference-not-set-to-an-instance-of-an-object/107285/1 "2023-09-21T21:31:02Z")

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Has anyone successfully uploaded AR invoices using the DMT version 11.2.200.24?  
I am able to upload the individual components, group, header, detail and misc but the combined is giving an error - Company xxxxxx InvoiceNum = 0 Object reference not set to an instance of an object  
I have also tried and am able to run the AR Invoice Combined if I remove the detail columns from the upload, then the group and invoice is created.  
These are the column headings I have

 ![image](https://www.epiusers.help/uploads/default/original/3X/5/3/5388b722b7976c24c7acbf73d979fd58320888d2.png)  
Any suggestions?

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**Author:** ![MikeGross](https://www.epiusers.help/user_avatar/www.epiusers.help/mikegross/32/14500_2.png) [@MikeGross](https://www.epiusers.help/u/MikeGross)\
**Post date:** [September 22, 2023, 12:52pm UTC](https://www.epiusers.help/t/ar-invoice-combined-dmt-object-reference-not-set-to-an-instance-of-an-object/107285/2 "2023-09-22T12:52:47Z")

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I’ve not done this import, but I’ve done many others and more often than not, it comes down to two things:

1. You have not included a ‘mandatory’ column although Epicor has not specified it as being mandatory - sometimes this occurs because you have another module like AMM or something that requires additional field data to be present.
2. You have not created a pre-requisite piece of information - like Sales Territory or SalesPerson - that you are trying to include in your import.

Hope that helps!

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<div class="post-metadata">

**Author:** ![twinkelman](https://www.epiusers.help/letter_avatar_proxy/v4/letter/t/bc79bd/32.png) [@twinkelman](https://www.epiusers.help/u/twinkelman)\
**Post date:** [September 27, 2023, 2:49pm UTC](https://www.epiusers.help/t/ar-invoice-combined-dmt-object-reference-not-set-to-an-instance-of-an-object/107285/3 "2023-09-27T14:49:04Z")

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Thank you!  
I ended up having to get a hotfix from Epicor.  
Something is broke with the AR Invoice Combined in 2022.2.24