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ERROR 90308 Lines 30800+22215+44800 do not equal 50340+50341

I have employed T4 income plus self employed income. I have used TT for years and no problem but this year I cannot NETFILE as I get error 90308, as T1 lines 30800+22215+44800 do not equal lines 50340+50341 from Schedule 8 (my deductions on T4). The issue is the second tier T4 deduction (50341 schedule B) is also being used for my self employed income contribution in section 5 of Schedule B. Line 44 800 on T1 is usually autofilled from Line 31 Schedule B - which would make the above lines equal and the error go away - but line 56 in Part 5 of Schedule B is 0 and also autopopulates line 44 800- which is what is happening- and this makes the above lines not equal and triggers the error. Not sure how to get around this....????

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ERROR 90308 Lines 30800+22215+44800 do not equal 50340+50341

just to clarify- there are 2 lines on schedule B that say to transfer the amount to Line 44800 on T1- (Line 31 in Part 3 and Line 56 in Part 5) - and I have different values on those lines. TT is transferring from Line 56 but the value on Line 31 is the one needed to match NETFILE requirement as per my original post