unable to see primary sales person in order management after submitting the sales order

Summary:

I have created sandbox to display the primary salesperson in order management. but After creating the sales order i am not seeing this primary salesperson in both order header and Order fulfillment line level as well. please let me know why system not showing this field after order submission

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Version (include the version you are using, if applicable):R13 24C

Code Snippet (add any code snippets that support your topic, if applicable):