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Incompatibility errors in BC v28 for "VAT Amount Line"

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Posted on by DinB

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How can i fix following incompatibility errors with BC version 28? any general suggestion would be helpful. The errors are due to changes in "VAT Amount Line" table. Thank you.
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Errors:

Error AL0133: Argument 4: cannot convert from 'Code[20]' to 'Boolean'
Error AL0133: Argument 5: cannot convert from 'Boolean' to 'Decimal'
Error AL0133: Argument 6: cannot convert from 'Decimal' to 'Boolean'
Error AL0133: Argument 8: cannot convert from 'Boolean' to 'Decimal'
Error AL0132: 'Record "VAT Amount Line"' does not contain a definition for 'SumLine'
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Extension code snippets:

var VATAmLn: Record "VAT Amount Line";

VATAmLn.InsertNewLine(para1, para2, para3, para4, para5, para6, para7, para8);
...
VATAmLn.SumLine(para1, para2, para3, para4, para5);

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Reference:

https://learn.microsoft.com/en-us/dynamics365/business-central/application/base-application/table/microsoft.finance.vat.calculation.vat-amount-line

Categories:

Dynamics 365 Business Central

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YUN ZHU 100,974 Super User 2026 Season 1 on at

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Try the following InsertLine() method and events.

Thanks.

ZHU

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OussamaSabbouh 16,074 Super User 2026 Season 1 on at

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Hello,

This is a BC 28 breaking change in table "VAT Amount Line": your old InsertNewLine(...) call no longer matches the current parameter list, so arguments are now shifted by position (Code[20] is landing where BC 28 expects a Boolean, then the following Boolean/Decimal values are also offset), and SumLine(...) appears to have been removed or replaced, so the fix is to open the BC 28 symbol/source for VAT Amount Line, compare the current procedure signatures, remap InsertNewLine to the new exact argument order/types, and replace SumLine with the new BC 28 calculation pattern/procedure rather than trying to cast parameters; as a general upgrade rule, wrap Base App helper calls like this behind your own local helper methods so future signature changes only require one adjustment point.

Regards,
Oussama Sabbouh

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Khushbu Rajvi. 22,424 Super User 2026 Season 1 on at

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You need to review the updated table definition and align your parameters accordingly, and replace SumLine with the new standard calculation logic from the base app.

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