How To Fix 00030 - & not allowed in subscreens (dynpro & &)

00030 - Overview

• Message type: E = Error

• Message class: 00 -

• Message number: 030

• Message text: & not allowed in subscreens (dynpro & &)

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

00030 - Details

• 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