Message type: E = Error
Message class: 00 -
Message number: 030
Message text: & not allowed in subscreens (dynpro & &)
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00030
- & not allowed in subscreens (dynpro & &) ?The SAP error message "00030 - Not allowed in subscreens (dynpro & &)" typically occurs when there is an attempt to perform an action or display a field that is not permitted in a subscreen context. This error is related to the way SAP handles screen elements and their visibility or usability in different screen contexts.
Cause: Subscreen Context: The error arises when a certain operation is attempted in a subscreen where it is not allowed. This could be due to the screen's design or the specific field's properties. Field Attributes: Certain fields may have attributes that restrict their use in subscreens, such as being set as "output only" or having specific screen attributes that do not allow interaction. Screen Flow Logic: The logic defined in the screen flow may not allow certain actions to be performed in subscreens, leading to this error.
Solution: Check Screen Design: Review the screen design in the Screen Painter (SE80
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