Field Validation not working in business central

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Posted on by Test user

323

Hi Guys,

I am facing one query . i.e.

For e.g. I have one field Req.Delivery Date on sales header.& same field on sales line. once i enter data into header field it will automatically populate into sales line field.

I have write this code. code is right as per my assuption, but it is not working.

Once i select the new line ,then it will not updating that value.i want to update this field

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Dynamics 365 Business Central

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YUN ZHU 101,414 Super User 2026 Season 1 on at

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This is because your code only exists in the OnValidate trigger of Req.Delivery Date field. When you add new Sales Line, the trigger of this field is not executed.

I think you need to add similar logic in the Sales Line's OnInsert (Table) Trigger. This should solve the problem.

Hope this helps.

Thanks.

ZHU

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Judy Microsoft Employee on at

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Hi Sir,

It is high recommended that you can troubleshoot in the AL code to identify the root cause of the issue, you can set up break points in the specific lines.

Debugging - Business Central | Microsoft Learn

Best Regards,

Judy

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Test user 323 on at

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Hi Yunzhu,

I have write the same logic on insert trigger on sales line table, but still is not working. Is any other way to do this?

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Robert Jolliffe 890 on at

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This looks wrong

Should be Rec_SalesLine."Req.Delivery Date" as "Req. Delivery Date" is referring to Rec."Req. Delivery Date"

I think you're setting the header to itself.

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Mohana Yadav 61,216 Super User 2026 Season 1 on at

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can you share the oninsert code?

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Test user 323 on at

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Hi Mohana,

This is the code i have written on insert trigger on sales line table.

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DevZubair 4 on at

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use this code on onInsert trigger of sales Line Table and then execute

trigger OnInsert()
var
SalesHeader: Record "Sales Header";
begin
SalesHeader.Get("Document Type", "Document No.");
"My Field" := SalesHeader."My Field";
end;

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