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Dynamics 365 Community / Forums / Finance forum / ​​​​​​​BPErrorTableFie...
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​​​​​​​BPErrorTableFieldNotDefinedUsingType: Field must be defined using a type.

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Posted on by CU04051814-0
Hi,

i created a str computed column method, that returns literal
SysComputedColumn::returnLiteral(1), SysComputedColumn::returnLiteral(0)

And i got this BP warning: BPErrorTableFieldNotDefinedUsingType: Field must be defined using a type.

1. What EDT can i use for this one to remove the BP warning, as there is no str with 1 single character -- or shall i create a new EDT?

2. if i switch the method to NoYes instead of str (as i can create enum unmapped field)-- what shall i use instead of returnLiteral(1)?
 
3. if i switch the method to boolean instead of str -- what shall i use instead of returnLiteral(1)? also there is no /boolean un mapped field to choose in the first place
  • Martin Dráb Profile Picture
    Martin Dráb 232,034 Most Valuable Professional on at
    ​​​​​​​BPErrorTableFieldNotDefinedUsingType: Field must be defined using a type.
    The type of the field does matter. One would create a string field and the other would create an enum field. The method will always return a string because it returns SQL code (which is a text), not the field value. The value is obtained by executing this SQL code when exporting the data.
     
    You can fill in Extends property if you're creating a specialization of an exiting EDT. If it's not the case, leave it empty.
  • Martin Dráb Profile Picture
    Martin Dráb 232,034 Most Valuable Professional on at
    ​​​​​​​BPErrorTableFieldNotDefinedUsingType: Field must be defined using a type.
    1) 10 isn't the minimum string length. You can use 1 if you want.
    2) Yes, the return value of the method must be string, because it's actually a piece of SQL code.
    3) You can use enums; you're just doing it wrong. If you look at your own screenshot, you'll see Enum Unmapped Field, which is what you need to use. The method will still return a string, as discussed in the previous point. You can find many examples in the standard application, e.g. SalesOrderLineCDSV2Entity::areTotalsComputedColumnDefinition().
  • Martin Dráb Profile Picture
    Martin Dráb 232,034 Most Valuable Professional on at
    ​​​​​​​BPErrorTableFieldNotDefinedUsingType: Field must be defined using a type.
    1. Use a data type that correctly describes the purpose of field (Name, Label, HelpText). Create a new one when no suitable one exists.
    2. You could technically use what you already have, because NoYes is stored as 0 or 1. But returnLiteral(NoYes::Yes) and returnLiteral(NoYes::No) will be better. But make sure you use an EDT with a specific label etc., as discussed above.
    3. boolean is an enum type, therefore it's the same situation as in the previous point.

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