AssetDepBook import - 'Fixed asset number' must be filled in

Hello All , 

I am trying to import data in AssetDepBook table using Excel add-ins. I am using "Add Data".

Steps below:

1. Created a simple Query using AssetDepBook table

2. Created a service using  AIF Document Service Wizard

3. Deployed that service ( My Inbound service is activated )

4.  Setup my service in Organization > setup > Document Data source > Add Service ? Activate 

5. Excel Add-ins > Setups server and Entity > Add data > select service > Add  just two columns ( for testing) 

6. I included Depreciation Book and Fixed Asset Number

7.Records do exists in Assettable and assetBook tables , As per requirements , I just need to  import Record for depreciation Book table .

8. entered Existing valid AssetNumber and DepBookId

When I  Published my  new data , I was getting below error . 

Any help will be appreciated . 

Thanks, 

Kumkum