How To Fix NP186 - Key to table & is too long

NP186 - Overview

• Message type: E = Error

• Message class: NP - New checks in the activating program

• Message number: 186

• Message text: Key to table & is too long

What causes this issue?

The sum of the field length of all key fields of the table exceeds the
allowed value.

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?

Either remove fields from the key or reduce the length of the key
fields.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message NP186 - Key to table & is too long ?

  The SAP error message NP186, which states "Key to table & is too long," typically occurs when you are trying to create or manipulate a key in a database table that exceeds the maximum length allowed for that key. This can happen in various scenarios, such as when defining a primary key, foreign key, or when using certain database operations that involve keys.
  
  Cause:
  
  Key Length Exceeded: The primary cause of this error is that the key you are trying to use exceeds the maximum length defined for that particular table in the database. Each database table has a limit on the length of its key fields, and if you attempt to use a key that is longer than this limit, the error will be triggered.
  Data Type Mismatch: If the data type of the key field is not compatible with the data being inserted or updated, it can also lead to this