Hello @aaghaei
Currently there is no designated field on the Expense Receipts screen to distinguish between system created vs manually created Expense Receipts. The clue as you have mentioned in from the “Ref Nbr” field is derived from the reference provided by the Data Provider for the Transaction
I would suggest adding this to the ideas page on thehttps://community.acumatica.com/ideas so that this can be voted on by other partners or customers and considered in future product enhancements.
Our developers regularly check this page and may implement well voted ideas to future versions of Acumatica.
Regards,
Amaan
Senior Application Support Specialist | Acumatica