How To Fix RSM820 - Object names cannot start with a '0' in the customer name range

RSM820 - Overview

• Message type: E = Error

• Message class: RSM -

• Message number: 820

• Message text: Object names cannot start with a '0' in the customer name range

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message RSM820 - Object names cannot start with a '0' in the customer name range ?

  The SAP error message RSM820 indicates that there is an issue with the naming convention of customer numbers in the system. Specifically, it states that object names (in this case, customer numbers) cannot start with a '0' in the defined customer name range. This is a common validation rule in SAP to ensure that customer numbers are unique and follow a specific format.
  
  Cause:
  The error typically occurs when:
  
  A user attempts to create or modify a customer number that begins with a '0'.
  The configuration settings for the customer number range do not allow leading zeros.
  There may be a misunderstanding of the number range settings or the format required for customer numbers.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Number Range Configuration:
  
  Go to the transaction code SNRO (Number Range Objects).
  Look for the number range object related to customer numbers (usually KNA1 for customer master data).
  Verify the settings for the number range.