How does one deduct the CPP retroactive payment included in T4A(P) in Profile?  CRA has advised that a return's net income is lower than reported in Profile because of a retroactive payment and this is preventing efile because T2203 has higher net income that CRA's T1 line 23600.  Efile Help Desk said that it should be deducted on the T4A(P) input screen with a memo description.