How To Fix CB521 - Specify operation or phase number

CB521 - Overview

• Message type: E = Error

• Message class: CB - PP-PI-PMA: Dialog Messages for Process Management

• Message number: 521

• Message text: Specify operation or phase number

What causes this issue?

The selected process message has the destination &V1& assigned to it.
Messages which are to be processed by this destination must contain
either an operation number or a phase number. However, the selected
message does not contain any of these numbers.

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?

If the message has not yet been sent to another destination, correct
and send it from the message monitor.
Otherwise, manually post the data if necessary.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CB521 - Specify operation or phase number ?

  The SAP error message CB521 ("Specify operation or phase number") typically occurs in the context of production planning or process order management within SAP. This error indicates that the system requires a specific operation or phase number to proceed with a particular action, such as creating or modifying a production order or process order.
  
  Cause:
  
  Missing Operation/Phase Number: The most common cause of this error is that the operation or phase number has not been specified in the relevant transaction or screen.
  Incorrect Configuration: There may be issues with the configuration of the routing or the production order that does not properly define the operations or phases.
  Data Entry Error: Users may have inadvertently skipped entering the required operation or phase number when creating or modifying an order.
  
  
  Solution:
  
  Specify the Operation/Phase Number: When prompted with this error, ensure that you enter the required operation or phase number in the relevant field. This is often found