Line 23200 "Other deductions" -- How is this amount calculated? CRA asks me to submit the supporting docs but I cannot figure out where this amount came from.

My Line 23200 shows the same amount as in 68080 "Any other investment expenses claimed in 2021 to earn property income", as well as "Foreign tax deduction under subsection 20(12)". I think I made some erroneous entries for some foreign investment tax slips. Could anyone help me which tax slips have tax deductibles, such as foreign tax withheld outside Canada?

Seniors and students

This image shows what is included in Line 23200 "Other deductions". 

 

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