How To Fix OH018 - Entry already exists in group &: & - &

OH018 - Overview

• Message type: E = Error

• Message class: OH - Messages Group Maintenance

• Message number: 018

• Message text: Entry already exists in group &: & - &

What causes this issue?

The value you specified already exists in another node, or there is an
interval overlap.
When you insert nodes from other group structures, the values/intervals
below these nodes are also inserted. For each of these entries, an
ambiguity check is also arried out.

System Response

The entry is not accepted for CO groups (except for account groups).

How to fix this error?

Make sure that when you insert nodes there are no overlaps when you
directly (or indirectly) insert new values/intervals.
&HINT&
In order to be able control the <DS:DE.DCIND>Plus/Minus processing
(Report Writer)</>, duplicate values are permitted for account groups.
Duplicate values are only necessary here if an account occurs no more
than twice, and the P/M indicator (the <ZH>Settings for Reports</>
function to be found under the <ZH>Extras</> menu ) is set differently
for this account.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message OH018 - Entry already exists in group &: & - & ?

  The SAP error message OH018 ("Entry already exists in group &: & - &") typically occurs when you are trying to create or modify an entry in a group (such as a master data group) that already contains an entry with the same key or identifier. This can happen in various contexts, such as when dealing with material master data, customer/vendor master data, or other grouped entries.
  
  Cause:
  
  Duplicate Entry: The most common cause of this error is that you are attempting to create a new entry that has the same key or identifier as an existing entry in the specified group.
  Data Migration Issues: If you are migrating data from another system or performing bulk uploads, there may be duplicates in the data being imported.
  Incorrect Configuration: Sometimes, the configuration settings for the group may not allow for duplicate entries, leading to this error.
  
  
  Solution:
  
  Check Existing Entries: Before creating a new entry, check the