When I try to fill one collection on top of another, I get the null error. This error no longer exists on the same server on the same code. My transfer method has been process sharing
I attached the error log file.
Thank you for your help
Good afternoon Ehsan,
This indicates that you are referring to a column index that is not in the collection, please check the data and columns of that collection.
I share the following link that explains very well how to Add records to tables within tables:
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