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The extended data type 'myBOMQty' is not derived from 'BOMQty'

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Posted on by Shooowtek

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Hello,

I am trying to change the scale and number of decimals in EDT BOMQty to 8.

I created a new EDT (myBOMQty) with the value 8 in /scale/ and /no of decimals/ and I get the following error: /The extended data type 'myBOMQty' is not derived from 'BOMQty'/.

Is this possible?
Thanks.

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Waed Ayyad 7,760 Super User 2025 Season 1 on at

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The extended data type 'myBOMQty' is not derived from 'BOMQty'

Hi @Shooowtek,

Since your EDT is extends another EDT then it will get the properties from Extended EDT ( BOMQty and it is set to 6 ), so to solve your issue you have two options :

1- Make an extension to the parent EDT BOMQty and modify the properties of it but you need to pay attention this change will affect all references that use this EDT

2- You shouldn't make the new EDT myBOMQty extends from the BOMQty and modify its properties as you want (you can change scale)

Try one of these two suggestions.

Thanks,

Waed Ayyad

Please mark this answer as "Verified" if it solved your issue. In order to help others who will face a similar issue in the future
Shooowtek 751 on at

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The extended data type 'myBOMQty' is not derived from 'BOMQty'

Yes, I added this as extends to my EDT. But when I do this the value of 'scale' is inherited rom BOMQty and it is set to 6 - the requirement specifies that the value must be 8.
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Waed Ayyad 7,760 Super User 2025 Season 1 on at

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The extended data type 'myBOMQty' is not derived from 'BOMQty'

Hi @Shooowtek,

Did you add BOMQty as Extends property on your EDT? I created new EDT and I'm able to modify scale and no of decimals. Can you share your EDT property so I can help you better.

Thanks.

Waed Ayyad

Please mark this answer as "Verified" if it solved your issue. In order to help others who will face a similar issue in the future