How To Fix /PLMB/BA_NAV035 - Class &1 does not exist or does not implement interface &2

/PLMB/BA_NAV035 - Overview

• Message type: E = Error

• Message class: /PLMB/BA_NAV -

• Message number: 035

• Message text: Class &1 does not exist or does not implement interface &2

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.

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/PLMB/BA_NAV035 - Details

• The SAP error message /PLMB/BA_NAV035 Class &1 does not exist or does not implement interface &2 typically occurs in the context of SAP Business Application Studio or when working with Business Application Programming Interfaces (BAPIs) in SAP. This error indicates that the system is trying to access a class that either does not exist or does not implement a required interface.
  
  Cause:
  
  Class Does Not Exist: The specified class (&1) is not defined in the system. This could be due to a typo in the class name or the class not being activated or transported to the system.
  Class Does Not Implement Interface: The class exists, but it does not implement the specified interface (&2). This could happen if the class was designed without the necessary interface or if the interface has been changed or removed.
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to access the class or interface.
  Transport Issues: