How many fields can be added in va01

Hello All,
I'm trying to add new fields in the additional data B tab of the header but I noted that I can't add as much fields as I want even if in the dynpro 83909/SAPMV45A still have space.
Is there any limitiation of number of fields to be added? If not, why I'm facing this strange behaviour?
Please help me.
Best regards.

Hi Kima,
There might be a limitation upon the number of fields that can be added to VA01. You can create a subscreen area on the standard screen and call your custom screen and define any number of fields on that screen and achieve the required functionality.
Regards,
Dnyanesh.

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