How To Fix C5801 - Select another number, this one already exists.

SAP Error Message - Details

• Message type: E = Error

• Message class: C5 - Master Recipe

• Message number: 801

• Message text: Select another number, this one already exists.

What causes this issue?

You assigned a process instruction number or a key which was
already used.

How to fix this error?

Enter a process instruction number which is not yet assigned.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message C5801 - Select another number, this one already exists. ?

  The SAP error message C5801, which states "Select another number, this one already exists," typically occurs when you are trying to create or modify a record (such as a document, order, or master data) that requires a unique identifier (like a number or code), and the identifier you are trying to use is already in use.
  
  Cause:
  
  Duplicate Entry: The most common cause is that the number you are trying to use is already assigned to another record in the system.
  Number Range Issues: The number range configuration for the object you are working with may not allow for the number you are trying to use.
  Data Consistency: There may be data consistency issues in the database, where the system believes the number is already in use due to a previous transaction or error.
  
  
  Solution:
  
  Choose a Different Number: The simplest solution is to select a different number that is not already in use.
  Check Existing Records: