How To Fix BT090 - & was called with invalid operation code (&)

BT090 - Overview

• Message type: E = Error

• Message class: BT - Background processing messages

• Message number: 090

• Message text: & was called with invalid operation code (&)

What causes this issue?

An undefined operation code was passed to the background processing
component named in the message. This error should not occur unless the
component is being called from a new or modified program.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Please contact SAP if this error occurs in a module delivered by SAP.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message BT090 - & was called with invalid operation code (&) ?

  The SAP error message BT090 typically indicates that a function module or method was called with an invalid operation code. This error can occur in various contexts, such as when working with Business Transaction (BT) or Business Object (BO) frameworks in SAP.
  
  Cause:
  
  Invalid Operation Code: The most common cause of this error is that the operation code passed to a function module or method is not recognized or is not valid for the context in which it is being called.
  
  Configuration Issues: There may be issues with the configuration of the business object or transaction that is being processed.
  Custom Development: If there are custom developments or enhancements, they may not be handling the operation codes correctly.
  Data Issues: The data being processed may not meet the expected criteria, leading to an invalid operation code being generated.
  
  
  Solution:
  
  Check the Operation Code: Review the code or configuration where the operation code is being set. Ensure that