How To Fix SDME_MDB329 - No tab position allowed for the header and key area

SDME_MDB329 - Overview

• Message type: E = Error

• Message class: SDME_MDB - DME: Maintenance Dialog Builder

• Message number: 329

• Message text: No tab position allowed for the header and key area

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SDME_MDB329 - No tab position allowed for the header and key area ?

  The SAP error message SDME_MDB329 ("No tab position allowed for the header and key area") typically occurs in the context of the SAP Sales and Distribution (SD) module, particularly when dealing with the configuration of the screen layout or the user interface in transaction screens.
  
  Cause:
  This error usually arises when there is an attempt to use tab positions in areas of the screen where they are not permitted. Specifically, it can occur in the header or key area of a screen layout where the system does not allow tabbing to different fields or sections. This can happen due to:
  
  Screen 
  Configuration Issues: The screen layout might be incorrectly configured, leading to an attempt to set tab positions in areas that do not support them.
  Custom Development: If there are custom enhancements or modifications made to the standard SAP screens, they might inadvertently introduce tab positions in restricted areas.
  User Authorizations: Sometimes, user roles and