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Hello Experts
in sales Order page there is Field External Document No. if we tried to enter value in page that already added and preseent in sales header table means if this field already have value in table Sales Header it should not allow same value to be entered I am unaware how to achive cah you please help me i tried following code but stuck on validate of Ecternal DOc no. of page
thnaks in Advance Experts
This is done already on Purchase Orders, so You can check the validation of that field, and create the same for Sales Documents.
Make sure that once you posted the Order fully then the Order will be deleted and in that case the system will check External Doc No. in the existing Orders and not the already posted (deleted) orders.
If you want to check all existing and previous orders then use Customer Ledger Entries.
salesH.Reset;
SalesH.Setrange("Document Type", Rec."Document Type);
SalesH.Setfilter("No.",'<>%1',Rec."No.");
SalesH.SetRange("External Document No.", Rec.External Document No.);
if SalesH.findfirst then begin
Error('External Document No. %1 already used in document %2',Rec.External Document No.,SalesH."No.");
Please fix if there are any compilation issues as I just typed the logic here.
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