The problem is clear that a field in the Import (incoming) message cannot be mapped to a Autonumber since it is auto generated. The solution is not very obvious. I created a new import message without the VehicleId. I then created an import mapping for the message. I then mapped the import message to the Vehicle entity. I also added an integer parameter to the Import mapping which I mapped to the VehicleId in the entity. This solved my problem.
We need to take vehicle ID as Integer instead of Auto Number.
Since, it is not able to fetch auto number.
It seems that the Vehicleid you are trying to post is empty. Hence it can not find the object. You might also want to change the behaviour what to do if not found or change the autonumber field. Due to the autofieldnumber you can not change the value. So when posting a Vehicle with vehicleid 10000 you can not create it because it will create it with a totally different vehicleid autonumber.
Regards,
Ronald
4.Change in the Microflow as follows to get the new Vehicle ID automatically :
So got the new Auto Generated Vehicle ID every time new Vehicle is created in Database, To check on duplicity key is used for each fields.
thanks everyone ..