Error while calculating order planing

santa100

We are using order planing from forever but with starting yesterday we get the following error while calculating order planing.

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NAV ERROR

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The expression Code cannot be type-converted to a Option value.

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When I go into debbuger the line where all stops is in the table 246 - Requisition Line in record: Ending Time
I bolded the line where all stops.

TESTFIELD(Type,Type::Artikel);

IF ReqLine.GET("Worksheet Template Name","Journal Batch Name","Line No.") THEN
BEGIN
MODIFY;
PlngLnMgt.Recalculate(Rec,1);
GET("Worksheet Template Name","Journal Batch Name","Line No.");
END
ELSE
CalcStartingDate('');

IF CurrFieldNo <> FIELDNO("Due Date") THEN
SetDueDate;
SetActionMessage;

IF "Ending Time" = 0T THEN
BEGIN
MfgSetup.GET;
"Ending Time" := MfgSetup."Normal Ending Time";
END;

UpdateDatetime;

The search of the knowledge base didn't helped nor did any changes that i made to the code, GET statement looks o.k and debbuger doesn't reveal any code type data that should be option.
We are using NAV 5.0 sp1 localized to slovenian.

Shedman

There are two options:
1: The primary key of the Requisition Line was changed, including a new option field
2: The ReqLine variable points to a different table, with an option as one of the primary key fields.

santa100

Yep I also thought that i had change something by mistake but when I look at dates in object designer there are no changes in the time period of last 7 days in anything else but in reports, changed reports also don't affect anything, they just show data.